4.3

CVE-2023-4581: mozilla firefox

CVSS: 4.3v3.1MediumModified
AliasesUBUNTU-CVE-2023-4581DEBIAN-CVE-2023-4581CGA-hqwp-v722-2xcg
Published 11-09-2023Last modified 18-12-2025
Open JSON

Vulnerability summary

CVE-2023-4581 is a medium (CVSS 4.3) vulnerability in mozilla firefox. EPSS estimates a 0.57% chance of exploitation in the next 30 days, higher than 46.3% 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
0.57%
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 29 · Related 10
DLA-3553-1DLA-3554-1DSA-5485-1DSA-5488-1MGASA-2023-0266OPENSUSE-SU-2024:13176-1

Timeline

  1. 11-09-2023
    PublishedVulnerability first disclosed.
  2. 18-12-2025
    Last modifiedVulnerability information updated.

Description

Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed them to be downloaded without any warning of their potential harm. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.57%

Chance of exploitation in the next 30 days

Percentile

46%

Versus all other CVEs

30-day change

0.00 pp

From 0.57% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.57%

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

No weakness data has been published for this record.

Affected systems

Ubuntu8 products
  • firefox< 117.0+build2-0ubuntu0.20.04.1
  • mozjs102All versions (No fix recorded)
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
  • mozjs68All versions (No fix recorded)
Mozilla3 products
  • firefox≥ unspecified, < 117 | < 117.0 | ≥ 115.0, < 115.2
  • firefox_esr≥ unspecified, < 102.15 | ≥ unspecified, < 115.2 | < 102.15
  • thunderbird≥ unspecified, < 102.15 | ≥ unspecified, < 115.2 | < 115.2
Debian2 products
  • firefox-esr< 102.15.0esr-1~deb12u1 | < 115.2.0esr-1
  • thunderbird< 1:102.15.0-1~deb12u1 | < 1:115.2.0-1
Chainguard1 product
  • firefox-esr< 117.0-r0

4 vendors · 14 products

References

11 links
Show all 11 references