3.7

CVE-2026-25832: trustedfirmware mbed_tls

CVSS: 3.7v3.1LowAwaiting analysis
AliasesALPINE-CVE-2026-25832UBUNTU-CVE-2026-25832DEBIAN-CVE-2026-25832
Published 14-09-2026Last modified 14-09-2026
Open JSON

Vulnerability summary

CVE-2026-25832 is a low (CVSS 3.7) vulnerability in trustedfirmware mbed_tls. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 19.5% of scored vulnerabilities.

Overall risk
15/100
0100
Low · default modelHow is this calculated?
CVSS score
3.7/10
010
Low · v3.1 (CVE.org)
EPSS score
0.28%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 2
MGASA-2026-0375OPENSUSE-SU-2026:11215-1OPENSUSE-SU-2026:11267-1

Timeline

  1. 14-09-2026
    PublishedVulnerability first disclosed.
  2. 14-09-2026
    Last modifiedVulnerability information updated.

Description

In Mbed TLS 3.6.x before 3.6.7 and 4.1.x before 4.1.2, the TLS 1.3 client accepts HelloRetryRequest selecting an unadvertised group.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

+0.06 pp

From 0.22% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.28%

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

Alpine1 product
  • mbedtls< 3.6.7-r0 | < 4.1.1-r0
Debian1 product
  • mbedtlsAll versions (No fix recorded) | < 3.6.7-2
Opensuse1 product
  • mbedtls&distro=openSUSE Leap 16.0< 3.6.7-bp160.1.1
Trustedfirmware1 product
  • mbed_tls≥ 3.5.0, < 3.6.7 | ≥ 4.0.0, < 4.1.2
Ubuntu1 product
  • mbedtlsAll versions (No fix recorded)

5 vendors · 5 products

References

8 links