Use-after-free vulnerability in the mozilla::layout::ScrollbarActivity function in Mozilla Firefox before 24.0, Firefox ESR 17.x before 17.0.9, Thunderbird before 24.0, Thunderbird ESR 17.x before 17.0.9, and SeaMonkey before 2.21 allows remote attackers to execute arbitrary code via vectors related to image-document scrolling.
Conclusion & alert: CVE-2013-1735 is rated High Risk (69.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 4.73%, 91th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 4.50% | 4.73% | +0.23% |
| 2 | 2025-05-04 | 3.95% | 4.50% | +0.55% |
| 3 | 2025-03-30 | — | 3.95% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
high | CVE-2013-1735: 1 GLSA(s) (201309-23), 6 atom(s) (mail-client/thunderbird, mail-client/thunderbird-bin, www-client/firefox, www-client/firefox-bin, www-client/seamonkey, www-client/seamonkey-bin); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-1735 |
redhat
|
critical | — | https://access.redhat.com/security/cve/CVE-2013-1735 |
suse
|
critical | CVE-2013-1735 severity critical: SUSE including 82 source package names (MozillaFirefox-140.2.0-160000.1.2, MozillaFirefox-17.0.9esr-0.3.1, …), 110 product×package rows across 37 product lines (SUSE Linux Enterprise Desktop 11 SP2, SUSE Linux Enterprise Desktop 11 SP3, … (37 product lines)): Fixed 110. | https://www.suse.com/security/cve/CVE-2013-1735/ |
ubuntu
|
medium | CVE-2013-1735 medium priority: Ubuntu including 2 source packages (firefox, thunderbird), 10 status rows across 5 suites (lucid, precise, quantal, raring, upstream): released 8, ignored 2. | https://ubuntu.com/security/CVE-2013-1735 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mozilla | firefox | <= 23.0.1 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla | firefox | 19.0 | cpe:2.3:a:mozilla:firefox:19.0:*:*:*:*:*:*:* |
| mozilla | firefox | 19.0.1 | cpe:2.3:a:mozilla:firefox:19.0.1:*:*:*:*:*:*:* |
| mozilla | firefox | 19.0.2 | cpe:2.3:a:mozilla:firefox:19.0.2:*:*:*:*:*:*:* |
| mozilla | firefox | 20.0 | cpe:2.3:a:mozilla:firefox:20.0:*:*:*:*:*:*:* |
| mozilla | firefox | 20.0.1 | cpe:2.3:a:mozilla:firefox:20.0.1:*:*:*:*:*:*:* |
| mozilla | firefox | 21.0 | cpe:2.3:a:mozilla:firefox:21.0:*:*:*:*:*:*:* |
| mozilla | firefox | 22.0 | cpe:2.3:a:mozilla:firefox:22.0:*:*:*:*:*:*:* |
| mozilla | firefox | 23.0 | cpe:2.3:a:mozilla:firefox:23.0:*:*:*:*:*:*:* |
| mozilla | firefox | 17.0 | cpe:2.3:a:mozilla:firefox:17.0:*:*:*:*:*:*:* |
| mozilla | firefox | 17.0.1 | cpe:2.3:a:mozilla:firefox:17.0.1:*:*:*:*:*:*:* |
| mozilla | firefox | 17.0.2 | cpe:2.3:a:mozilla:firefox:17.0.2:*:*:*:*:*:*:* |
| mozilla | firefox | 17.0.3 | cpe:2.3:a:mozilla:firefox:17.0.3:*:*:*:*:*:*:* |
| mozilla | firefox | 17.0.4 | cpe:2.3:a:mozilla:firefox:17.0.4:*:*:*:*:*:*:* |
| mozilla | firefox | 17.0.5 | cpe:2.3:a:mozilla:firefox:17.0.5:*:*:*:*:*:*:* |
| mozilla | firefox | 17.0.6 | cpe:2.3:a:mozilla:firefox:17.0.6:*:*:*:*:*:*:* |
| mozilla | firefox | 17.0.7 | cpe:2.3:a:mozilla:firefox:17.0.7:*:*:*:*:*:*:* |
| mozilla | firefox | 17.0.8 | cpe:2.3:a:mozilla:firefox:17.0.8:*:*:*:*:*:*:* |
| mozilla | thunderbird_esr | 17.0 | cpe:2.3:a:mozilla:thunderbird_esr:17.0:*:*:*:*:*:*:* |
| mozilla | thunderbird_esr | 17.0.1 | cpe:2.3:a:mozilla:thunderbird_esr:17.0.1:*:*:*:*:*:*:* |
| mozilla | thunderbird_esr | 17.0.2 | cpe:2.3:a:mozilla:thunderbird_esr:17.0.2:*:*:*:*:*:*:* |
| mozilla | thunderbird_esr | 17.0.3 | cpe:2.3:a:mozilla:thunderbird_esr:17.0.3:*:*:*:*:*:*:* |
| mozilla | thunderbird_esr | 17.0.4 | cpe:2.3:a:mozilla:thunderbird_esr:17.0.4:*:*:*:*:*:*:* |
| mozilla | thunderbird_esr | 17.0.5 | cpe:2.3:a:mozilla:thunderbird_esr:17.0.5:*:*:*:*:*:*:* |
| mozilla | thunderbird_esr | 17.0.6 | cpe:2.3:a:mozilla:thunderbird_esr:17.0.6:*:*:*:*:*:*:* |
| mozilla | thunderbird_esr | 17.0.7 | cpe:2.3:a:mozilla:thunderbird_esr:17.0.7:*:*:*:*:*:*:* |
| mozilla | thunderbird_esr | 17.0.8 | cpe:2.3:a:mozilla:thunderbird_esr:17.0.8:*:*:*:*:*:*:* |
| mozilla | seamonkey | <= 2.20 | cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0 | cpe:2.3:a:mozilla:seamonkey:2.0:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0 | cpe:2.3:a:mozilla:seamonkey:2.0:alpha_1:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0 | cpe:2.3:a:mozilla:seamonkey:2.0:alpha_2:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0 | cpe:2.3:a:mozilla:seamonkey:2.0:alpha_3:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0 | cpe:2.3:a:mozilla:seamonkey:2.0:beta_1:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0 | cpe:2.3:a:mozilla:seamonkey:2.0:beta_2:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0 | cpe:2.3:a:mozilla:seamonkey:2.0:rc1:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0 | cpe:2.3:a:mozilla:seamonkey:2.0:rc2:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0.1 | cpe:2.3:a:mozilla:seamonkey:2.0.1:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0.2 | cpe:2.3:a:mozilla:seamonkey:2.0.2:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0.3 | cpe:2.3:a:mozilla:seamonkey:2.0.3:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0.4 | cpe:2.3:a:mozilla:seamonkey:2.0.4:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0.5 | cpe:2.3:a:mozilla:seamonkey:2.0.5:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0.6 | cpe:2.3:a:mozilla:seamonkey:2.0.6:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0.7 | cpe:2.3:a:mozilla:seamonkey:2.0.7:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0.8 | cpe:2.3:a:mozilla:seamonkey:2.0.8:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0.9 | cpe:2.3:a:mozilla:seamonkey:2.0.9:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0.10 | cpe:2.3:a:mozilla:seamonkey:2.0.10:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0.11 | cpe:2.3:a:mozilla:seamonkey:2.0.11:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0.12 | cpe:2.3:a:mozilla:seamonkey:2.0.12:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0.13 | cpe:2.3:a:mozilla:seamonkey:2.0.13:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.0.14 | cpe:2.3:a:mozilla:seamonkey:2.0.14:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.1 | cpe:2.3:a:mozilla:seamonkey:2.1:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.1 | cpe:2.3:a:mozilla:seamonkey:2.1:alpha1:*:*:*:*:*:* |
| mozilla | seamonkey | 2.1 | cpe:2.3:a:mozilla:seamonkey:2.1:alpha2:*:*:*:*:*:* |
| mozilla | seamonkey | 2.1 | cpe:2.3:a:mozilla:seamonkey:2.1:alpha3:*:*:*:*:*:* |
| mozilla | seamonkey | 2.1 | cpe:2.3:a:mozilla:seamonkey:2.1:beta1:*:*:*:*:*:* |
| mozilla | seamonkey | 2.1 | cpe:2.3:a:mozilla:seamonkey:2.1:beta2:*:*:*:*:*:* |
| mozilla | seamonkey | 2.1 | cpe:2.3:a:mozilla:seamonkey:2.1:beta3:*:*:*:*:*:* |
| mozilla | seamonkey | 2.1 | cpe:2.3:a:mozilla:seamonkey:2.1:rc1:*:*:*:*:*:* |
| mozilla | seamonkey | 2.1 | cpe:2.3:a:mozilla:seamonkey:2.1:rc2:*:*:*:*:*:* |
| mozilla | seamonkey | 2.10 | cpe:2.3:a:mozilla:seamonkey:2.10:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.10 | cpe:2.3:a:mozilla:seamonkey:2.10:beta1:*:*:*:*:*:* |
| mozilla | seamonkey | 2.10 | cpe:2.3:a:mozilla:seamonkey:2.10:beta2:*:*:*:*:*:* |
| mozilla | seamonkey | 2.10 | cpe:2.3:a:mozilla:seamonkey:2.10:beta3:*:*:*:*:*:* |
| mozilla | seamonkey | 2.10.1 | cpe:2.3:a:mozilla:seamonkey:2.10.1:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.11 | cpe:2.3:a:mozilla:seamonkey:2.11:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.11 | cpe:2.3:a:mozilla:seamonkey:2.11:beta1:*:*:*:*:*:* |
| mozilla | seamonkey | 2.11 | cpe:2.3:a:mozilla:seamonkey:2.11:beta2:*:*:*:*:*:* |
| mozilla | seamonkey | 2.11 | cpe:2.3:a:mozilla:seamonkey:2.11:beta3:*:*:*:*:*:* |
| mozilla | seamonkey | 2.11 | cpe:2.3:a:mozilla:seamonkey:2.11:beta4:*:*:*:*:*:* |
| mozilla | seamonkey | 2.11 | cpe:2.3:a:mozilla:seamonkey:2.11:beta5:*:*:*:*:*:* |
| mozilla | seamonkey | 2.11 | cpe:2.3:a:mozilla:seamonkey:2.11:beta6:*:*:*:*:*:* |
| mozilla | seamonkey | 2.12 | cpe:2.3:a:mozilla:seamonkey:2.12:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.12 | cpe:2.3:a:mozilla:seamonkey:2.12:beta1:*:*:*:*:*:* |
| mozilla | seamonkey | 2.12 | cpe:2.3:a:mozilla:seamonkey:2.12:beta2:*:*:*:*:*:* |
| mozilla | seamonkey | 2.12 | cpe:2.3:a:mozilla:seamonkey:2.12:beta3:*:*:*:*:*:* |
| mozilla | seamonkey | 2.12 | cpe:2.3:a:mozilla:seamonkey:2.12:beta4:*:*:*:*:*:* |
| mozilla | seamonkey | 2.12 | cpe:2.3:a:mozilla:seamonkey:2.12:beta5:*:*:*:*:*:* |
| mozilla | seamonkey | 2.12 | cpe:2.3:a:mozilla:seamonkey:2.12:beta6:*:*:*:*:*:* |
| mozilla | seamonkey | 2.12.1 | cpe:2.3:a:mozilla:seamonkey:2.12.1:*:*:*:*:*:*:* |
| mozilla | seamonkey | 2.13 | cpe:2.3:a:mozilla:seamonkey:2.13:*:*:*:*:*:*:* |