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5425 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2009-2767 | 1 Linux | 2 Kernel, Linux Kernel | 2026-04-23 | N/A |
| The init_posix_timers function in kernel/posix-timers.c in the Linux kernel before 2.6.31-rc6 allows local users to cause a denial of service (OOPS) or possibly gain privileges via a CLOCK_MONOTONIC_RAW clock_nanosleep call that triggers a NULL pointer dereference. | ||||
| CVE-2009-2849 | 2 Linux, Redhat | 3 Linux Kernel, Enterprise Linux, Enterprise Mrg | 2026-04-23 | N/A |
| The md driver (drivers/md/md.c) in the Linux kernel before 2.6.30.2 might allow local users to cause a denial of service (NULL pointer dereference) via vectors related to "suspend_* sysfs attributes" and the (1) suspend_lo_store or (2) suspend_hi_store functions. NOTE: this is only a vulnerability when sysfs is writable by an attacker. | ||||
| CVE-2009-2908 | 2 Linux, Redhat | 2 Linux Kernel, Enterprise Linux | 2026-04-23 | N/A |
| The d_delete function in fs/ecryptfs/inode.c in eCryptfs in the Linux kernel 2.6.31 allows local users to cause a denial of service (kernel OOPS) and possibly execute arbitrary code via unspecified vectors that cause a "negative dentry" and trigger a NULL pointer dereference, as demonstrated via a Mutt temporary directory in an eCryptfs mount. | ||||
| CVE-2009-2516 | 1 Microsoft | 5 Windows 2000, Windows Server 2003, Windows Server 2008 and 2 more | 2026-04-23 | 7.1 High |
| The kernel in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold and SP1, and Server 2008 Gold does not properly validate data sent from user mode, which allows local users to gain privileges via a crafted PE .exe file that triggers a NULL pointer dereference during chain traversal, aka "Windows Kernel NULL Pointer Dereference Vulnerability." | ||||
| CVE-2009-1386 | 3 Canonical, Openssl, Redhat | 4 Ubuntu Linux, Openssl, Enterprise Linux and 1 more | 2026-04-23 | N/A |
| ssl/s3_pkt.c in OpenSSL before 0.9.8i allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a DTLS ChangeCipherSpec packet that occurs before ClientHello. | ||||
| CVE-2009-0793 | 3 Littlecms, Redhat, Sun | 3 Lcms, Enterprise Linux, Openjdk | 2026-04-23 | N/A |
| cmsxform.c in LittleCMS (aka lcms or liblcms) 1.18, as used in OpenJDK and other products, allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted image that triggers execution of incorrect code for "transformations of monochrome profiles." | ||||
| CVE-2009-1181 | 5 Apple, Foolabs, Glyphandcog and 2 more | 5 Cups, Xpdf, Xpdfreader and 2 more | 2026-04-23 | N/A |
| The JBIG2 decoder in Xpdf 3.02pl2 and earlier, CUPS 1.3.9 and earlier, Poppler before 0.10.6, and other products allows remote attackers to cause a denial of service (crash) via a crafted PDF file that triggers a NULL pointer dereference. | ||||
| CVE-2025-69651 | 1 Gnu | 1 Binutils | 2026-04-22 | 5.5 Medium |
| GNU Binutils thru 2.46 readelf contains a vulnerability that leads to an invalid pointer free when processing a crafted ELF binary with malformed relocation or symbol data. If dump_relocations returns early due to parsing errors, the internal all_relocations array may remain partially uninitialized. Later, process_got_section_contents() may attempt to free an invalid r_symbol pointer, triggering memory corruption checks in glibc and causing the program to terminate with SIGABRT. No evidence of further memory corruption or code execution was observed; the impact is limited to denial of service. NOTE: this is disputed by third parties because the observed behavior occurred only in pre-release code and did not affect any tagged version. | ||||
| CVE-2026-6778 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-04-22 | 5.3 Medium |
| Invalid pointer in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | ||||
| CVE-2026-1584 | 2 Gnu, Redhat | 5 Gnutls, Enterprise Linux, Hardened Images and 2 more | 2026-04-22 | 7.5 High |
| A flaw was found in gnutls. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted ClientHello message with an invalid Pre-Shared Key (PSK) binder value during the TLS handshake. This can lead to a NULL pointer dereference, causing the server to crash and resulting in a remote Denial of Service (DoS) condition. | ||||
| CVE-2026-21525 | 1 Microsoft | 30 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 27 more | 2026-04-22 | 6.2 Medium |
| Null pointer dereference in Windows Remote Access Connection Manager allows an unauthorized attacker to deny service locally. | ||||
| CVE-2026-39956 | 1 Jqlang | 1 Jq | 2026-04-22 | 6.1 Medium |
| jq is a command-line JSON processor. In commits after 69785bf77f86e2ea1b4a20ca86775916889e91c9, the _strindices builtin in jq's src/builtin.c passes its arguments directly to jv_string_indexes() without verifying they are strings, and jv_string_indexes() in src/jv.c relies solely on assert() checks that are stripped in release builds compiled with -DNDEBUG. This allows an attacker to crash jq trivially with input like _strindices(0), and by crafting a numeric value whose IEEE-754 bit pattern maps to a chosen pointer, achieve a controlled pointer dereference and limited memory read/probe primitive. Any deployment that evaluates untrusted jq filters against a release build is vulnerable. This issue has been patched in commit fdf8ef0f0810e3d365cdd5160de43db46f57ed03. | ||||
| CVE-2025-71234 | 1 Linux | 1 Linux Kernel | 2026-04-20 | 7.8 High |
| In the Linux kernel, the following vulnerability has been resolved: wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add The driver does not set hw->sta_data_size, which causes mac80211 to allocate insufficient space for driver private station data in __sta_info_alloc(). When rtl8xxxu_sta_add() accesses members of struct rtl8xxxu_sta_info through sta->drv_priv, this results in a slab-out-of-bounds write. KASAN report on RISC-V (VisionFive 2) with RTL8192EU adapter: BUG: KASAN: slab-out-of-bounds in rtl8xxxu_sta_add+0x31c/0x346 Write of size 8 at addr ffffffd6d3e9ae88 by task kworker/u16:0/12 Set hw->sta_data_size to sizeof(struct rtl8xxxu_sta_info) during probe, similar to how hw->vif_data_size is configured. This ensures mac80211 allocates sufficient space for the driver's per-station private data. Tested on StarFive VisionFive 2 v1.2A board. | ||||
| CVE-2025-71236 | 1 Linux | 1 Linux Kernel | 2026-04-20 | 5.5 Medium |
| In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Validate sp before freeing associated memory System crash with the following signature [154563.214890] nvme nvme2: NVME-FC{1}: controller connect complete [154564.169363] qla2xxx [0000:b0:00.1]-3002:2: nvme: Sched: Set ZIO exchange threshold to 3. [154564.169405] qla2xxx [0000:b0:00.1]-ffffff:2: SET ZIO Activity exchange threshold to 5. [154565.539974] qla2xxx [0000:b0:00.1]-5013:2: RSCN database changed – 0078 0080 0000. [154565.545744] qla2xxx [0000:b0:00.1]-5013:2: RSCN database changed – 0078 00a0 0000. [154565.545857] qla2xxx [0000:b0:00.1]-11a2:2: FEC=enabled (data rate). [154565.552760] qla2xxx [0000:b0:00.1]-11a2:2: FEC=enabled (data rate). [154565.553079] BUG: kernel NULL pointer dereference, address: 00000000000000f8 [154565.553080] #PF: supervisor read access in kernel mode [154565.553082] #PF: error_code(0x0000) - not-present page [154565.553084] PGD 80000010488ab067 P4D 80000010488ab067 PUD 104978a067 PMD 0 [154565.553089] Oops: 0000 1 PREEMPT SMP PTI [154565.553092] CPU: 10 PID: 858 Comm: qla2xxx_2_dpc Kdump: loaded Tainted: G OE ------- --- 5.14.0-503.11.1.el9_5.x86_64 #1 [154565.553096] Hardware name: HPE Synergy 660 Gen10/Synergy 660 Gen10 Compute Module, BIOS I43 09/30/2024 [154565.553097] RIP: 0010:qla_fab_async_scan.part.0+0x40b/0x870 [qla2xxx] [154565.553141] Code: 00 00 e8 58 a3 ec d4 49 89 e9 ba 12 20 00 00 4c 89 e6 49 c7 c0 00 ee a8 c0 48 c7 c1 66 c0 a9 c0 bf 00 80 00 10 e8 15 69 00 00 <4c> 8b 8d f8 00 00 00 4d 85 c9 74 35 49 8b 84 24 00 19 00 00 48 8b [154565.553143] RSP: 0018:ffffb4dbc8aebdd0 EFLAGS: 00010286 [154565.553145] RAX: 0000000000000000 RBX: ffff8ec2cf0908d0 RCX: 0000000000000002 [154565.553147] RDX: 0000000000000000 RSI: ffffffffc0a9c896 RDI: ffffb4dbc8aebd47 [154565.553148] RBP: 0000000000000000 R08: ffffb4dbc8aebd45 R09: 0000000000ffff0a [154565.553150] R10: 0000000000000000 R11: 000000000000000f R12: ffff8ec2cf0908d0 [154565.553151] R13: ffff8ec2cf090900 R14: 0000000000000102 R15: ffff8ec2cf084000 [154565.553152] FS: 0000000000000000(0000) GS:ffff8ed27f800000(0000) knlGS:0000000000000000 [154565.553154] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [154565.553155] CR2: 00000000000000f8 CR3: 000000113ae0a005 CR4: 00000000007706f0 [154565.553157] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [154565.553158] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [154565.553159] PKRU: 55555554 [154565.553160] Call Trace: [154565.553162] <TASK> [154565.553165] ? show_trace_log_lvl+0x1c4/0x2df [154565.553172] ? show_trace_log_lvl+0x1c4/0x2df [154565.553177] ? qla_fab_async_scan.part.0+0x40b/0x870 [qla2xxx] [154565.553215] ? __die_body.cold+0x8/0xd [154565.553218] ? page_fault_oops+0x134/0x170 [154565.553223] ? snprintf+0x49/0x70 [154565.553229] ? exc_page_fault+0x62/0x150 [154565.553238] ? asm_exc_page_fault+0x22/0x30 Check for sp being non NULL before freeing any associated memory | ||||
| CVE-2025-37945 | 1 Linux | 1 Linux Kernel | 2026-04-20 | 5.5 Medium |
| In the Linux kernel, the following vulnerability has been resolved: net: phy: allow MDIO bus PM ops to start/stop state machine for phylink-controlled PHY DSA has 2 kinds of drivers: 1. Those who call dsa_switch_suspend() and dsa_switch_resume() from their device PM ops: qca8k-8xxx, bcm_sf2, microchip ksz 2. Those who don't: all others. The above methods should be optional. For type 1, dsa_switch_suspend() calls dsa_user_suspend() -> phylink_stop(), and dsa_switch_resume() calls dsa_user_resume() -> phylink_start(). These seem good candidates for setting mac_managed_pm = true because that is essentially its definition [1], but that does not seem to be the biggest problem for now, and is not what this change focuses on. Talking strictly about the 2nd category of DSA drivers here (which do not have MAC managed PM, meaning that for their attached PHYs, mdio_bus_phy_suspend() and mdio_bus_phy_resume() should run in full), I have noticed that the following warning from mdio_bus_phy_resume() is triggered: WARN_ON(phydev->state != PHY_HALTED && phydev->state != PHY_READY && phydev->state != PHY_UP); because the PHY state machine is running. It's running as a result of a previous dsa_user_open() -> ... -> phylink_start() -> phy_start() having been initiated by the user. The previous mdio_bus_phy_suspend() was supposed to have called phy_stop_machine(), but it didn't. So this is why the PHY is in state PHY_NOLINK by the time mdio_bus_phy_resume() runs. mdio_bus_phy_suspend() did not call phy_stop_machine() because for phylink, the phydev->adjust_link function pointer is NULL. This seems a technicality introduced by commit fddd91016d16 ("phylib: fix PAL state machine restart on resume"). That commit was written before phylink existed, and was intended to avoid crashing with consumer drivers which don't use the PHY state machine - phylink always does, when using a PHY. But phylink itself has historically not been developed with suspend/resume in mind, and apparently not tested too much in that scenario, allowing this bug to exist unnoticed for so long. Plus, prior to the WARN_ON(), it would have likely been invisible. This issue is not in fact restricted to type 2 DSA drivers (according to the above ad-hoc classification), but can be extrapolated to any MAC driver with phylink and MDIO-bus-managed PHY PM ops. DSA is just where the issue was reported. Assuming mac_managed_pm is set correctly, a quick search indicates the following other drivers might be affected: $ grep -Zlr PHYLINK_NETDEV drivers/ | xargs -0 grep -L mac_managed_pm drivers/net/ethernet/atheros/ag71xx.c drivers/net/ethernet/microchip/sparx5/sparx5_main.c drivers/net/ethernet/microchip/lan966x/lan966x_main.c drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c drivers/net/ethernet/freescale/dpaa/dpaa_eth.c drivers/net/ethernet/freescale/ucc_geth.c drivers/net/ethernet/freescale/enetc/enetc_pf_common.c drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c drivers/net/ethernet/marvell/mvneta.c drivers/net/ethernet/marvell/prestera/prestera_main.c drivers/net/ethernet/mediatek/mtk_eth_soc.c drivers/net/ethernet/altera/altera_tse_main.c drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c drivers/net/ethernet/meta/fbnic/fbnic_phylink.c drivers/net/ethernet/tehuti/tn40_phy.c drivers/net/ethernet/mscc/ocelot_net.c Make the existing conditions dependent on the PHY device having a phydev->phy_link_change() implementation equal to the default phy_link_change() provided by phylib. Otherwise, we implicitly know that the phydev has the phylink-provided phylink_phy_change() callback, and when phylink is used, the PHY state machine always needs to be stopped/ started on the suspend/resume path. The code is structured as such that if phydev->phy_link_change() is absent, it is a matter of time until the kernel will crash - no need to further complicate the test. Thus, for the situation where the PM is not managed b ---truncated--- | ||||
| CVE-2025-71233 | 1 Linux | 1 Linux Kernel | 2026-04-20 | 5.5 Medium |
| In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: Avoid creating sub-groups asynchronously The asynchronous creation of sub-groups by a delayed work could lead to a NULL pointer dereference when the driver directory is removed before the work completes. The crash can be easily reproduced with the following commands: # cd /sys/kernel/config/pci_ep/functions/pci_epf_test # for i in {1..20}; do mkdir test && rmdir test; done BUG: kernel NULL pointer dereference, address: 0000000000000088 ... Call Trace: configfs_register_group+0x3d/0x190 pci_epf_cfs_work+0x41/0x110 process_one_work+0x18f/0x350 worker_thread+0x25a/0x3a0 Fix this issue by using configfs_add_default_group() API which does not have the deadlock problem as configfs_register_group() and does not require the delayed work handler. [mani: slightly reworded the description and added stable list] | ||||
| CVE-2025-8033 | 2 Mozilla, Redhat | 4 Firefox, Firefox Esr, Thunderbird and 1 more | 2026-04-20 | 6.5 Medium |
| The JavaScript engine did not handle closed generators correctly and it was possible to resume them leading to a nullptr deref. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1. | ||||
| CVE-2025-38562 | 2 Debian, Linux | 2 Debian Linux, Linux Kernel | 2026-04-20 | 5.5 Medium |
| In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference error in generate_encryptionkey If client send two session setups with krb5 authenticate to ksmbd, null pointer dereference error in generate_encryptionkey could happen. sess->Preauth_HashValue is set to NULL if session is valid. So this patch skip generate encryption key if session is valid. | ||||
| CVE-2024-23441 | 2 Anti-virus, Microsoft | 2 Vba32, Windows | 2026-04-20 | 5.5 Medium |
| Vba32 Antivirus v3.36.0 is vulnerable to a Denial of Service vulnerability by triggering the 0x2220A7 IOCTL code of the Vba32m64.sys driver. | ||||
| CVE-2025-62466 | 1 Microsoft | 23 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 20 more | 2026-04-20 | 7.8 High |
| Null pointer dereference in Windows Client-Side Caching (CSC) Service allows an authorized attacker to elevate privileges locally. | ||||