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CVE-2007-0257

28
FAUCET Score

CVE-2007-0257 describes an unspecified vulnerability in the expand_stack function within the grsecurity PaX kernel patch, potentially allowing local users to gain privileges. This vulnerability carries a high CVSS score of 7.8, indicating a significant risk with local access, low attack complexity, and high impact on confidentiality, integrity, and availability. While the grsecurity developer disputed the claim, a proof-of-concept exploit (EDB-29446) exists, though there is no evidence of active exploitation, Metasploit modules, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.9.4CPE matchmatch criteria
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:1.9.4:*:*:*:*:*:*:*
2.0.1CPE matchmatch criteria
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.0.1:*:*:*:*:*:*:*
2.0.2CPE matchmatch criteria
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.0.2:*:*:*:*:*:*:*
2.1.0CPE matchmatch criteria
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.0:*:*:*:*:*:*:*
2.1.1CPE matchmatch criteria
cpe:2.3:a:grsecurity:grsecurity_kernel_patch:2.1.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.96%
Probability of exploitation in next 30 days
EPSS Percentile
58.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-29446 · Dec 18, 2006
This CVE's current EPSS score of 0.0096 is in the 91st percentile among its peer group of 16,994 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 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 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

forums.grsecurity.net / viewtopic.php
Vendor Advisory
grsecurity.net / news.php
osvdb.org / 32727
secunia.com / advisories/23713
securitytracker.com / id
digitalarmaments.com / news_news.shtml
Vendor AdvisoryURL Repurposed
digitalarmaments.com / pre2007-00018659.html
Vendor AdvisoryURL Repurposed
securityfocus.com / archive/1/456626/100/0/threaded
securityfocus.com / archive/1/456722/100/0/threaded
securityfocus.com / archive/1/457509/100/0/threaded
securityfocus.com / archive/1/462302/100/100/threaded
securityfocus.com / bid/22014
vupen.com / english/advisories/2007/0155