5.7

CVE-2025-27498: rustcrypto aeads

CVSS: 5.7v4.0MediumDeferred
AliasesUBUNTU-CVE-2025-27498GHSA-r38m-44fw-h886
Published 03-03-2025Last modified 03-03-2025
Open JSON

Vulnerability summary

CVE-2025-27498 is a medium (CVSS 5.7) vulnerability in rustcrypto aeads. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2% of scored vulnerabilities.

Overall risk
23/100
0100
Low · default modelHow is this calculated?
CVSS score
5.7/10
010
Medium · v4.0 (NVD)
EPSS score
0.13%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 03-03-2025
    PublishedVulnerability first disclosed.
  2. 03-03-2025
    Last modifiedVulnerability information updated.

Description

aes-gcm is a pure Rust implementation of the AES-GCM. In decrypt_in_place_detached, the decrypted ciphertext (which is the correct ciphertext) is exposed even if the tag is incorrect. This is because in decrypt_inplace in asconcore.rs, tag verification causes an error to be returned with the plaintext contents still in buffer. The vulnerability is fixed in 0.4.3.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.13%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

0.00 pp

From 0.12% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.13%

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

Crates.Io1 product
  • ascon_aead< 0.4.3
Rustcrypto1 product
Ubuntu1 product
  • rust-aes-gcmAll versions (No fix recorded)

3 vendors · 3 products

References

6 links