CVE-2016-5297: debian debian_linux Integer Overflow or Wraparound
Vulnerability summary
CVE-2016-5297 is a critical (CVSS 9.8) Integer Overflow or Wraparound vulnerability in debian debian_linux. EPSS estimates a 3.53% chance of exploitation in the next 30 days, higher than 89.2% of scored vulnerabilities.
Severe, CVSS 9.8 (NVD); no exploitation reported by the 5 checked sources; EPSS 4% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 17 · Related 9Timeline
- 11-06-2018PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
An error in argument length checking in JavaScript, leading to potential integer overflows or other bounds checking issues. This vulnerability affects Thunderbird < 45.5, Firefox ESR < 45.5, and Firefox < 50.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
3.53%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
Decrease -0.07 pp
From 3.60% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Mozilla3 products
- firefox≥ unspecified, < 50 | < 45.5.0 | < 50.0
- firefox esr≥ unspecified, < 45.5
- thunderbird≥ unspecified, < 45.5 | < 45.5.0
Debian2 products
- firefox-esr< 45.5.0esr-1
- debian_linuxEOL8.0
Ubuntu2 products
- firefox< 50.0+build2-0ubuntu0.14.04.2 | < 50.0+build2-0ubuntu0.16.04.2
- thunderbird< 1:45.5.1+build1-0ubuntu0.14.04.1 | < 1:45.5.1+build1-0ubuntu0.16.04.1
3 vendors · 7 products
