CVE-2025-27810

medium
Published 2025-03-25 ยท Modified 2026-06-05
CVSS v3
4.8
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
4.8

Description

Mbed TLS before 2.28.10 and 3.x before 3.6.3, in some cases of failed memory allocation or hardware errors, uses uninitialized stack memory to compose the TLS Finished message, potentially leading to authentication bypasses such as replays.

Predictions

Exploit likelihood
58%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

debian Debian Mixed 5 releases
VersionStatusFixed in
trixie Fixed 3.6.3-1
sid Fixed 3.6.3-1
forky Fixed 3.6.3-1
bullseye Affected โ€”
bookworm Affected โ€”

Application impact

VendorProductVersionsFixed
armmbed_tls{"endExcluding":"2.28.10"}2.28.10
trustedfirmwarembed_tls{"startIncluding":"3.0.0","endExcluding":"3.6.3"}3.6.3

References

CWEs

CWE-908

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.