CVE-2025-10533: mozilla firefox Integer Overflow or Wraparound
CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2025-10533DEBIAN-CVE-2025-10533CGA-7c9f-x76x-6v26CGA-phph-v2jx-w7m3CGA-6v4r-vhcr-2rfvCGA-x683-rr23-3352
Published 16-09-2025Last modified 13-04-2026
Vulnerability summary
CVE-2025-10533 is a high (CVSS 8.8) Integer Overflow or Wraparound vulnerability in mozilla firefox. EPSS estimates a 0.75% chance of exploitation in the next 30 days, higher than 54.2% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (CVE.org)EPSS score
0.75%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 35 · Related 10DLA-4305-1DLA-4311-1DSA-6003-1DSA-6011-1MGASA-2025-0246MGASA-2025-0247OPENSUSE-SU-2025:15555-1OPENSUSE-SU-2025:15560-1OPENSUSE-SU-2025:15565-1OPENSUSE-SU-2025:20021-1OPENSUSE-SU-2025:20065-1RHSA-2025:16108RHSA-2025:16109RHSA-2025:16156RHSA-2025:16157RHSA-2025:16260RHSA-2025:16589RHSA-2025:17340RHSA-2025:17341RHSA-2025:17342RHSA-2025:17343RHSA-2025:17344RHSA-2025:17345RHSA-2025:17346RHSA-2025:17367RHSA-2025:17368RHSA-2025:17371RHSA-2025:17372RHSA-2025:17373RHSA-2025:17374RHSA-2025:17378RHSA-2025:17453SUSE-SU-2025:03291-1SUSE-SU-2025:03309-1SUSE-SU-2025:21021-1CGA-3H4F-PX52-93M4USN-7991-1
Timeline
- 16-09-2025PublishedVulnerability first disclosed.
- 13-04-2026Last modifiedVulnerability information updated.
Description
Integer overflow in the SVG component. This vulnerability was fixed in Firefox 143, Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
CVSS metrics
6 scores · 6 sources · 1 versionHigh 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 6 agree
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · WolfiEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · ChainguardEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.75%
Chance of exploitation in the next 30 days
Percentile
54%
Versus all other CVEs
30-day change
+0.02 pp
From 0.74% on 19-09-2026
19-09-202619-10-2026
EPSS score0.75%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu8 products
- mozjs102All versions (No fix recorded)
- mozjs115All versions (No fix recorded)
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- mozjs68All versions (No fix recorded)
Chainguard2 products
- firefox< 140.3-r0
- firefox-esr< 140.3-r0
Debian2 products
- firefox-esr< 140.3.0esr-1~deb12u1 | < 140.3.0esr-1~deb13u1 | < 140.3.0esr-1
- thunderbird< 1:140.3.0esr-1~deb12u1 | < 1:140.3.0esr-1~deb13u1 | < 1:140.3.0esr-1
Mozilla2 products
- firefox< 115.28.0 | < 143.0 | ≥ 116.0, < 140.3
- thunderbird< 140.3.0 | ≥ 141.0, < 143.0
Wolfi1 product
- firefox< 140.3-r0
5 vendors · 15 products
