7.7

CVE-2026-25835: arm mbed_tls

CVSS: 7.7v3.1HighAnalyzed
AliasesALPINE-CVE-2026-25835UBUNTU-CVE-2026-25835DEBIAN-CVE-2026-25835
Published 01-04-2026Last modified 01-04-2026
Open JSON

Vulnerability summary

CVE-2026-25835 is a high (CVSS 7.7) vulnerability in arm mbed_tls. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 6.8% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.7/10
010
High · v3.1 (CVE.org)
EPSS score
0.18%
0%100%
Low · +0.01 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 3
OPENSUSE-SU-2026:10498-1OPENSUSE-SU-2026:21144-1SUSE-SU-2026:22016-1

Timeline

  1. 01-04-2026
    PublishedVulnerability first disclosed.
  2. 01-04-2026
    Last modifiedVulnerability information updated.

Description

Mbed TLS before 3.6.6 and TF-PSA-Crypto before 1.1.0 misuse seeds in a Pseudo-Random Number Generator (PRNG).

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

+0.01 pp

From 0.17% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.18%

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

Trustedfirmware2 products
Alpine1 product
  • mbedtls< 3.6.6-r0
Arm1 product
Debian1 product
  • mbedtlsAll versions (No fix recorded) | < 3.6.6-0.1~deb13u1 | < 3.6.6-0.1
Ubuntu1 product
  • mbedtlsAll versions (No fix recorded)

5 vendors · 6 products

References

6 links