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CVE-2013-5597

34
FAUCET Score

CVE-2013-5597 is a critical use-after-free vulnerability affecting Mozilla Firefox, Thunderbird, and SeaMonkey versions prior to their respective updates. This flaw, residing in the nsDocLoader::doStopDocumentLoad function, can be triggered remotely during a state-change event related to offline cache updates. With a CVSS score of 10.0, it presents a low-complexity attack vector (AV:N/AC:L/Au:N) that could lead to arbitrary code execution or a denial of service through heap memory corruption. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
17.0CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird_esr:17.0:*:*:*:*:*:*:*
17.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird_esr:17.0.1:*:*:*:*:*:*:*
17.0.2CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird_esr:17.0.2:*:*:*:*:*:*:*
17.0.3CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird_esr:17.0.3:*:*:*:*:*:*:*
17.0.4CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird_esr:17.0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.27%
Probability of exploitation in next 30 days
EPSS Percentile
92.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0627 is in the 88th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:17.0.10-1.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:17.0.10-1.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:17.0.10-1.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:17.0.10-1.el6_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:17.0.10-1.el6_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xulrunner-0:17.0.10-1.el6_4
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2013-5597Critical

Mozilla: Use-after-free when updating offline cache (MFSA 2013-98)

Oct 29, 2013

References

lists.opensuse.org / opensuse-security-announce/2013-11/msg00005.html
lists.opensuse.org / opensuse-security-announce/2013-11/msg00006.html
lists.opensuse.org / opensuse-security-announce/2013-11/msg00014.html
rhn.redhat.com / errata/RHSA-2013-1476.html
rhn.redhat.com / errata/RHSA-2013-1480.html
bugzilla.mozilla.org / show_bug.cgi
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19277
security.gentoo.org / glsa/201504-01
debian.org / security/2013/dsa-2788
debian.org / security/2013/dsa-2797
mozilla.org / security/announce/2013/mfsa2013-98.html
Vendor Advisory