Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.2 libceph decode_pool out-of-bounds

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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.2. It has been classified as critical. Affected is the function decode_pool of the component libceph. The manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2025-71116. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.1.159/6.6.119/6.12.63/6.18.2 and classified as problematic. This issue affects the function decode_pool of the component libceph. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: libceph: make decode_pool() more resilient against corrupted osdmaps If the osdmap is (maliciously) corrupted such that the encoded length of ceph_pg_pool envelope is less than what is expected for a particular encoding version, out-of-bounds reads may ensue because the only bounds check that is there is based on that length value. This patch adds explicit bounds checks for each field that is decoded or skipped.

It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2025-71116 since 01/13/2026. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 284711 (Linux Distros Unpatched Vulnerability : CVE-2025-71116), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.160, 6.6.120, 6.12.64, 6.18.3 or 6.19-rc1 eliminates this vulnerability. Applying the patch c82e39ff67353a5a6cbc07b786b8690bd2c45aaa/e927ab132b87ba3f076705fc2684d94b24201ed1/5d0d8c292531fe356c4e94dcfdf7d7212aca9957/2acb8517429ab42146c6c0ac1daed1f03d2fd125/8c738512714e8c0aa18f8a10c072d5b01c83db39 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (284711), EUVD (EUVD-2026-2500) and CERT Bund (WID-SEC-2026-0119). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 284711
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-71116

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.160/6.6.120/6.12.64/6.18.3/6.19-rc1
Patch: c82e39ff67353a5a6cbc07b786b8690bd2c45aaa/e927ab132b87ba3f076705fc2684d94b24201ed1/5d0d8c292531fe356c4e94dcfdf7d7212aca9957/2acb8517429ab42146c6c0ac1daed1f03d2fd125/8c738512714e8c0aa18f8a10c072d5b01c83db39

Timelineinfo

01/13/2026 CVE reserved
01/14/2026 +1 days Advisory disclosed
01/14/2026 +0 days VulDB entry created
03/25/2026 +70 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-71116 (🔒)
GCVE (CVE): GCVE-0-2025-71116
GCVE (VulDB): GCVE-100-341087
EUVD: 🔒
CERT Bund: WID-SEC-2026-0119 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 01/14/2026 17:47
Updated: 03/25/2026 21:51
Changes: 01/14/2026 17:47 (59), 01/16/2026 05:08 (7), 01/16/2026 10:45 (2), 01/20/2026 11:18 (1), 03/09/2026 05:29 (1), 03/25/2026 21:51 (11)
Complete: 🔍
Cache ID: 216::103

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