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CVE-2010-3173

23
FAUCET Score

CVE-2010-3173 describes a vulnerability in the SSL implementation of Mozilla Firefox, Thunderbird, and SeaMonkey versions prior to specific updates. The flaw lies in the improper setting of the minimum key length for Diffie-Hellman Ephemeral (DHE) mode, making it susceptible to brute-force attacks. With a CVSS score of 7.5, this vulnerability is considered highly severe, allowing remote attackers with low attack complexity to compromise confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.6CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6:*:*:*:*:*:*:*
3.6.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.2:*:*:*:*:*:*:*
3.6.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.3:*:*:*:*:*:*:*
3.6.4CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.4:*:*:*:*:*:*:*
3.6.6CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.04%
Probability of exploitation in next 30 days
EPSS Percentile
86.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0304 is in the 75th percentile among its peer group of 51,553 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 (12)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:1.9.2.11-2.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: seamonkey-0:1.0.9-64.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:3.6.11-2.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: nss-0:3.12.8-1.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:3.6.11-2.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: nss-0:3.12.8-1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: seamonkey-0:1.0.9-0.61.el3
View patch
mozillavendor investigatingvia nvd_reference
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: thunderbird
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird

Vendor Advisories (1)

redhatCVE-2010-3173Moderate

NSS: insecure Diffie-Hellman key exchange

Oct 19, 2010

References

blogs.sun.com / security/entry/multiple_vulnerabilities_in_mozilla_firefox
bugzilla.mozilla.org / show_bug.cgi
bugzilla.mozilla.org / show_bug.cgi
bugzilla.mozilla.org / show_bug.cgi
bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/41839
secunia.com / advisories/42867
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12118
support.avaya.com / css/P8/documents/100114250
support.avaya.com / css/P8/documents/100120156
debian.org / security/2010/dsa-2123
mandriva.com / security/advisories
mandriva.com / security/advisories
mozilla.org / security/announce/2010/mfsa2010-72.html
Vendor Advisory
redhat.com / support/errata/RHSA-2010-0781.html
redhat.com / support/errata/RHSA-2010-0782.html
ubuntu.com / usn/USN-1007-1
vupen.com / english/advisories/2011/0061