5.5

CVE-2026-43157: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-43157DEBIAN-CVE-2026-43157
Published 06-05-2026Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2026-43157 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.16%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 23 · Related 23
OPENSUSE-SU-2026:21388-1SUSE-SU-2026:22742-1SUSE-SU-2026:22769-1SUSE-SU-2026:22809-1SUSE-SU-2026:22810-1SUSE-SU-2026:22812-1

Timeline

  1. 06-05-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: CGX: fix bitmap leaks The RX/TX flow-control bitmaps (rx_fc_pfvf_bmap and tx_fc_pfvf_bmap) are allocated by cgx_lmac_init() but never freed in cgx_lmac_exit(). Unbinding and rebinding the driver therefore triggers kmemleak: unreferenced object (size 16): backtrace: rvu_alloc_bitmap cgx_probe Free both bitmaps during teardown.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

+0.03 pp

From 0.13% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.16%

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

Affected systems

Ubuntu130 products
  • linux< 6.8.0-134.134 | All versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1060.63 | All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ e740003874edc13e468d19233f99787bedb4bb8e, < ad8a13a45c5c24d0d32de9a1c3fd58498a675ece | ≥ e740003874edc13e468d19233f99787bedb4bb8e, < 013ac469596a0b8671e62d89c89ae0bd46bbe667 | ≥ e740003874edc13e468d19233f99787bedb4bb8e, < ccef79af58b43787c25710c9da96651c6ddfe50f | ≥ e740003874edc13e468d19233f99787bedb4bb8e, < 6d389382ee655128056fbdab86baad8495ffbf33 | ≥ e740003874edc13e468d19233f99787bedb4bb8e, < ccca14bbdcc25829d355b9f4d3249f43dadb71c1 | ≥ e740003874edc13e468d19233f99787bedb4bb8e, < 3def995c4ede842adf509c410e92d09a0cedc965 | 5.18
  • linux_kernel≥ 5.18, < 6.1.165 | ≥ 6.2, < 6.6.128 | ≥ 6.7, < 6.12.75 | ≥ 6.13, < 6.18.16 | ≥ 6.19, < 6.19.6
Debian1 product
  • linux< 6.1.170-1 | < 6.12.85-1 | < 6.19.6-1

3 vendors · 133 products

References

22 links
Show all 22 references