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CVE-2013-0773

30
FAUCET Score

CVE-2013-0773 describes a vulnerability in Mozilla Firefox, Thunderbird, and SeaMonkey versions prior to 19.0, 17.0.3, and 2.16 respectively. The Chrome Object Wrapper (COW) and System Only Wrapper (SOW) implementations failed to prevent prototype modifications, allowing remote attackers to potentially extract sensitive information from chrome objects or execute arbitrary JavaScript with elevated privileges. This vulnerability carries a critical CVSS score of 9.3, indicating a network-based attack with medium complexity that could lead to complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 17.0.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 19.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 2.16CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
< 17.0.3CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
< 17.0.3CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird_esr:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.36%
Probability of exploitation in next 30 days
EPSS Percentile
82.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0236 is in the 39th percentile among its peer group of 8,918 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 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 (1)

mozillapatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2013-0773Moderate

Mozilla: Web content bypass of COW and SOW security wrappers (MFSA 2013-24)

Feb 19, 2013

References

lists.opensuse.org / opensuse-security-announce/2013-02/msg00017.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2013-02/msg00062.html
Mailing ListThird Party Advisory
bugzilla.mozilla.org / show_bug.cgi
Issue TrackingPatchVendor Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16861
Third Party Advisory
debian.org / security/2013/dsa-2699
Third Party Advisory
mozilla.org / security/announce/2013/mfsa2013-24.html
Vendor Advisory
ubuntu.com / usn/USN-1729-1
Third Party Advisory
ubuntu.com / usn/USN-1729-2
Third Party Advisory
ubuntu.com / usn/USN-1748-1
Third Party Advisory