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CVE-2007-5197

20
FAUCET Score

CVE-2007-5197 describes a buffer overflow vulnerability in the Mono.Math.BigInteger class, affecting Mono versions 1.2.5.1 and earlier, as well as various Linux distributions like Debian and openSUSE. This flaw, related to Reduce in Montgomery-based Pow methods, allows unauthenticated, remote attackers to execute arbitrary code. With a CVSS score of 7.5, it presents a high severity risk due to its low attack complexity and potential for complete compromise of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, no public exploit code available, and minimal community discussion or media coverage, suggesting it is not widely targeted.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.2.5.1CPE matchmatch criteria
cpe:2.3:a:mono:mono:*:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:mono:mono:1.0:*:*:*:*:*:*:*
1.0.5CPE matchmatch criteria
cpe:2.3:a:mono:mono:1.0.5:*:*:*:*:*:*:*
1.1.4CPE matchmatch criteria
cpe:2.3:a:mono:mono:1.1.4:*:*:*:*:*:*:*
1.1.8.3CPE matchmatch criteria
cpe:2.3:a:mono:mono:1.1.8.3:*:*:*:*:*:*:*

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
3.62%
Probability of exploitation in next 30 days
EPSS Percentile
88.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0362 is in the 79th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Vendor Advisories (1)

redhatCVE-2007-5197

: mono Math.BigInteger buffer overflow

References

bugs.gentoo.org / attachment.cgi
bugs.gentoo.org / show_bug.cgi
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/27439
secunia.com / advisories/27493
secunia.com / advisories/27511
secunia.com / advisories/27583
secunia.com / advisories/27612
secunia.com / advisories/27639
secunia.com / advisories/27937
exchange.xforce.ibmcloud.com / vulnerabilities/38248
redhat.com / archives/fedora-package-announce/2007-November/msg00249.html
debian.org / security/2007/dsa-1397
gentoo.org / security/en/glsa/glsa-200711-10.xml
mandriva.com / security/advisories
novell.com / linux/security/advisories/2007_23_sr.html
securityfocus.com / bid/26279
securitytracker.com / id
ubuntu.com / usn/usn-553-1
vupen.com / english/advisories/2007/3716