CVE-2007-0009
MediumNSS: SSLv2 protocol buffer overflows
Published Feb 1, 2007 · Updated Mar 9, 2026
Key Facts
Patch immediately- CVE-2007-0009 is a medium-severity vulnerability (CVSS 6.8 v2) affecting Firefox (Mozilla), Network Security Services (Mozilla), Seamonkey (Mozilla) and 15 more products.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 51% probability of exploitation in the next 30 days.
- Fixed versions are available, including devhelp 0:0.10-0.7.el4, devhelp 0:0.12-10.0.1.el5, Firefox 0:1.5.0.10-0.1.el4.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
6.8
AV:N/AC:M/Au:N/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
51%
Higher than 98.9% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2007-0009 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Stack-based buffer overflow in the SSLv2 support in Mozilla Network Security Services (NSS) before 3.11.5, as used by Firefox before 1.5.0.10 and 2.x before 2.0.0.2, Thunderbird before 1.5.0.10, SeaMonkey before 1.0.8, and certain Sun Java System server products before 20070611, allows remote attackers to execute arbitrary code via invalid "Client Master Key" length values.
Affected Products
29 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| FirefoxMozilla | See advisory | 1.5.0.10 |
| Network Security ServicesMozilla | See advisory | 3.11.5 |
| SeamonkeyMozilla | See advisory | 1.0.8 |
| ThunderbirdMozilla | See advisory | 1.5.0.10 |
| Ubuntu LinuxCanonical | 5.10, 6.06, 6.10 | n/a |
Patched Releases
devhelp
0:0.10-0.7.el4, 0:0.12-10.0.1.el5
Firefox
0:1.5.0.10-0.1.el4, 0:1.5.0.10-2.el5
firefox-esr
128.5.1-1.1
firefox-esr-branding-upstream
128.5.1-1.1
firefox-esr-translations-common
128.5.1-1.1
firefox-esr-translations-other
128.5.1-1.1
mozilla-firefox
1.5.0.10, 1.0.4-2sarge17
Network Security Services
3.11.5
Seamonkey
1.0.8, 0:1.0.8-0.2.el2, 0:1.0.8-0.2.el3, 0:1.0.8-0.2.el4
Thunderbird
1.5.0.10, 0:1.5.0.10-0.1.el4, 0:1.5.0.10-1.el5
MozillaFirefox
92.0-1.2
MozillaFirefox-branding-upstream
92.0-1.2
MozillaFirefox-devel
92.0-1.2
MozillaFirefox-translations-common
92.0-1.2
MozillaFirefox-translations-other
92.0-1.2
yelp
0:2.16.0-14.0.1.el5
Timeline
Publicly disclosed
Feb 1, 2007
Last updated
Mar 9, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisoryRHSA-2007:0077
- advisoryRHSA-2007:0077
- advisoryRHSA-2007:0078
- advisoryRHSA-2007:0079
- advisoryRHSA-2007:0097
FAQ
Common Questions.
Stack-based buffer overflow in the SSLv2 support in Mozilla Network Security Services (NSS) before 3.11.5, as used by Firefox before 1.5.0.10 and 2.x before 2.0.0.2, Thunderbird before 1.5.0.10, SeaMonkey before 1.0.8, and certain Sun Java System server products before 20070611, allows remote attackers to execute arbi…
Affected: Firefox (Mozilla); Network Security Services (Mozilla); Seamonkey (Mozilla), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including devhelp 0:0.10-0.7.el4, devhelp 0:0.12-10.0.1.el5, Firefox 0:1.5.0.10-0.1.el4.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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