CVE-2026-80831: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-80831DEBIAN-CVE-2026-80831
Published 04-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-80831 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.4% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
MGASA-2026-0506OPENSUSE-SU-2026:11773-1

Timeline

  1. 04-09-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: mxs-dcp - fix source scatterlist length access mxs_dcp_aes_block_crypt() uses sg_dma_len() without mapping the source scatterlist with dma_map_sg() first. Therefore, sg_dma_len() is invalid and could return zero or a stale DMA length, causing encryption and decryption to process the wrong number of bytes when CONFIG_NEED_SG_DMA_LENGTH=y. Use the original scatterlist length instead.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

0.00 pp

From 0.17% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu169 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.187-1 | < 6.12.111-1 | < 7.1.13-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, < fd0f211b27a6ec2ebd8c315683401b43adcc5511 | ≥ 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, < 04201dcc88b26eac52f736e39727fc5c420b7257 | ≥ 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, < e72a795df521cb65b7c4705cc11078cdacfaa2f4 | ≥ 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, < 1537bd55b4f842565068c54b47cd2ae1777d5f8f | ≥ 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, < da14fae5203b72ca71ccfa9af8de9249e40d533a | ≥ 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, < 182f16a20d329a1c818d51dad57d9bf43d356c7c | ≥ 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, < 0e9edb108a63bbbef952dfcbc597e34ed9c1fb74 | ≥ 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, < 6ef9a4afb52cb102ab038cd42352c142d8505d09 | ≥ 15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5, < c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8 | 3.14

3 vendors · 172 products

References

14 links
Show all 14 references