VulnerabilityPublished 21 Sep 2026Updated 27 Oct 2026

CVE-2025-10263: linux-ibm vulnerabilities

Affects Linux kernelSource GCVE Database

Authoritative record:CVE-2025-10263· Critical 9.1

Not known to be exploited · CVSS 9.1 Critical : upgrade to 7.0.0-1013.13 as a priority.

Data as of 28 Oct 2026, 00:57 UTC

CVSS 3.1 base score

9.1Critical

How severe the flaw is on the 0–10 CVSS scale.

Patch: Available – fixed in 7.0.0-1013.13

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 9 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

usn-8726-3

What to do

Upgrade the Ubuntu linux-ibm package to 7.0.0-1013.13.

Patches and advisories

ubuntu.com/security/notices/USN-8726-3 (opens in a new tab)

Affected software

Product	Affected	Fixed in
Ubuntu 26.04 LTSlinux-ibm`pkg:deb/ubuntu/linux-ibm?arch=source&distro=resolute`Other threats	Affected <7.0.0-1013.13	Fixed in 7.0.0-1013.13

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

It was discovered that some Arm processors could complete a broadcast translation lookaside buffer (TLB) invalidation before memory writes made through the invalidated translation were globally observed. A local attacker could possibly use this to write to memory after permission to do so had been revoked, bypassing memory protections or escalating privileges. (CVE-2025-10263) Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - User-space API (UAPI); - Kernel build system; - ARM32 architecture; - RISC-V architecture; - S390 architecture; - x86 architecture; - Block layer subsystem; - Cryptographic API; - Compute Acceleration Framework; - Intel NPU Driver; - ACPI drivers; - Android drivers; - Drivers core; - Compressed RAM block device driver; - Bluetooth drivers; - Character device driver; - Hardware random number generator core; - CPU frequency scaling framework; - Hardware crypto device drivers; - Buffer Sharing and Synchronization framework; - Intel Stratix 10 firmware drivers; - FPGA Framework; - GPIO subsystem; - GPU drivers; - HID subsystem; - CoreSight HW tracing drivers; - I2C subsystem; - IIO subsystem; - IIO ADC drivers; - InfiniBand drivers; - Input Device core drivers; - Input Device (Mouse) drivers; - IOMMU subsystem; - IRQ chip drivers; - Multiple devices driver; - Media drivers; - Multifunction device drivers; - Fastrpc Driver; - MMC subsystem; - Ethernet bonding driver; - Network drivers; - Mellanox network drivers; - MediaTek network drivers; - NTB driver; - NVME drivers; - NVMEM (Non Volatile Memory) drivers; - PCI subsystem; - Pin controllers subsystem; - x86 platform drivers; - System reset/shutdown drivers; - Power sequencing drivers; - PTP clock framework; - Voltage and Current Regulator drivers; - RPMSG subsystem; - SLIMbus drivers; - SPI subsystem; - Media staging drivers; - Realtek RTL8723BS SDIO drivers; - VME bus staging drivers; - Trusted Execution Environment drivers; - Thunderbolt and USB4 drivers; - TTY drivers; - Cadence USB3 driver; - ULPI bus; - DesignWare USB3 driver; - Faraday FOTG210 USB2 dual-role controller driver; - USB Gadget drivers; - USB Host Controller drivers; - USB ChaosKey driver; - Siemens ID Mouse USB driver; - IOWarrior USB driver; - LD Didactic USB driver; - LEGO USB Tower driver; - Intel USBIO USB I/O expander driver; - USS720 USB parallel port adapter driver; - MediaTek USB3 DRD driver; - USB Serial drivers; - USB Type-C Port Controller Manager driver; - USB Type-C Connector System Software Interface driver; - USB over IP driver; - VFIO drivers; - Framebuffer layer; - Virtio drivers; - BTRFS file system; - EROFS file system; - exFAT file system; - F2FS file system; - File systems infrastructure; - FUSE (File system in Userspace); - GFS2 file system; - HFS file system; - HFS+ file system; - Network file system (NFS) client; - Network file system (NFS) server daemon; - NILFS2 file system; - NTFS3 file system; - OCFS2 file system; - Proc file system; - SMB network file system; - UDF file system; - XFS file system; - Key management; - BPF subsystem; - Memory management; - Software nodes and device properties; - Glob pattern matching library; - Memory Management; - KVM subsystem; - Mellanox drivers; - Restartable sequences system call mechanism; - Socket messages infrastructure; - Network traffic control; - Bluetooth subsystem; - Netfilter; - Networking core; - Network sockets; - TCP network protocol; - io_uring subsystem; - IPC subsystem; - Audit subsystem; - Perf events; - Kernel fork() syscall; - Locking primitives; - Kernel module support; - Scheduler infrastructure; - Signal handling mechanism; - Timer subsystem; - Tracing infrastructure; - Debug objects infrastructure; - 6LoWPAN network protocol; - IEEE 802 network protocols; - 9P file system network protocol; - B.A.T.M.A.N. meshing protocol; - Ethernet bridge; - Devlink API; - HSR network protocol; - IEEE802154.4 network protocol; - IPv4 networking; - IPv6 networking; - XFRM subsystem; - L2TP protocol; - MAC80211 subsystem; - IEEE 802.15.4 subsystem; - Multipath TCP; - NetLabel subsystem; - Open vSwitch; - Phonet protocol; - Qualcomm IPC Router (QRTR); - RDS protocol; - SCTP protocol; - SMC sockets; - TIPC protocol; - TLS protocol; - Unix domain sockets; - VMware vSockets driver; - Wireless networking; - eXpress Data Path; - AppArmor security module; - Linux Security Modules (LSM) Framework; - Apple Onboard Audio ALSA driver; - ALSA framework; - FireWire sound drivers; - HD-audio driver; - Gravis UltraSound ALSA driver; - C-Me

References

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