CVE-2026-80836: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-80836DEBIAN-CVE-2026-80836
Published 04-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-80836 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 6.3% 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 11 · Related 10
MGASA-2026-0506OPENSUSE-SU-2026:11773-1OPENSUSE-SU-2026:22091-1SUSE-SU-2026:24179-1SUSE-SU-2026:24181-1SUSE-SU-2026:24182-1

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: virtio - bound the akcipher result length virtio_crypto_dataq_akcipher_callback() sets the result length from the device-reported response length without bounding it to the destination buffer, which was allocated for the original request length. sg_copy_from_buffer() then reads that many bytes from the destination buffer; a backend reporting a larger length over-reads adjacent kernel heap into the caller's scatterlist (an out-of-bounds read). Clamp the reported length to the originally requested destination length. A conforming device reports no more than that, so valid results are unaffected.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

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

Ubuntu142 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
  • linuxAll versions (No fix recorded) | < 6.12.111-1 | < 7.1.13-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a, < bd33cb19bcb432a4dd5e8f50be5e2547af1e9f78 | ≥ a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a, < 12c4f29e97f31b013f77ad65ba7daeb02aaa6abe | ≥ a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a, < 5545de5050cbc3594506d74f2c392b0716cf8bca | ≥ a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a, < 3fda114a42f1510a4ec8a0b17a0cfc997952ccc2 | ≥ a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a, < 1f9f877b1ef1fbd4ee95571cddf39c8002cee252 | ≥ a36bd0ad9fbf69d0d711b1c105954ce8d6cc144a, < f77a956f6a19f9463ef1527c9d0cda50dded6b92 | 5.19

3 vendors · 145 products

References

10 links