4.3

CVE-2023-6135: mozilla firefox Observable Discrepancy

CVSS: 4.3v3.1MediumModified
AliasesRHSA-2024:0785RHSA-2024:0786RHSA-2024:0790
Published 19-12-2023Last modified 13-02-2025
Open JSON

Vulnerability summary

CVE-2023-6135 is a medium (CVSS 4.3) Observable Discrepancy vulnerability in mozilla firefox. EPSS estimates a 0.71% chance of exploitation in the next 30 days, higher than 52.8% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (NVD)
EPSS score
0.71%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4 · Related 5
OPENSUSE-SU-2024:13531-1OPENSUSE-SU-2024:14572-1USN-6562-1USN-6727-1CGA-2P98-684V-9QPQ

Timeline

  1. 19-12-2023
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

Description

Multiple NSS NIST curves were susceptible to a side-channel attack known as "Minerva". This attack could potentially allow an attacker to recover the private key. This vulnerability affects Firefox < 121.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.71%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

0.00 pp

From 0.71% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.71%

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

Redhat20 products
  • nspr< 0:4.35.0-6.el9_3 | < 0:4.35.0-6.el9_2
  • nspr-debuginfo< 0:4.35.0-6.el9_3 | < 0:4.35.0-6.el9_2
  • nspr-devel< 0:4.35.0-6.el9_3 | < 0:4.35.0-6.el9_2
  • nss< 0:3.90.0-6.el8_8 | < 0:3.90.0-6.el8_9 | < 0:3.90.0-6.el9_3 | < 0:3.90.0-6.el9_2
  • nss-debuginfo< 0:3.90.0-6.el8_8 | < 0:3.90.0-6.el8_9 | < 0:3.90.0-6.el9_3 | < 0:3.90.0-6.el9_2
Ubuntu8 products
  • firefox< 121.0+build1-0ubuntu0.20.04.1
  • mozjs102All versions (No fix recorded)
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
  • mozjs68All versions (No fix recorded)
Chainguard1 product
  • firefox-esr< 121.0-r0
Debian1 product
  • nssAll versions (No fix recorded) | < 2:3.95-1
Mozilla1 product
  • firefox≥ unspecified, < 121 | < 121.0

5 vendors · 31 products

References

24 links
Show all 24 references