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CVE-2007-4622

18
FAUCET Score

CVE-2007-4622 describes an integer underflow vulnerability in the dns_name_fromtext function within IBM AIX 5.2's libdns_nonsecure.a and libdns_secure.a libraries. This flaw allows local users to escalate privileges by providing a specially crafted "-y" (TSIG key) argument to the 'dig' command. With a CVSS score of 7.2, this vulnerability is considered highly severe, enabling complete compromise of confidentiality, integrity, and availability with low attack complexity and no authentication required. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
5.2CPE matchmatch criteria
cpe:2.3:o:ibm:aix:5.2:*:*:*:*:*:*:*

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
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 23rd percentile among its peer group of 3,241 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, 0.0 Mastodon, and 0.5 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

Remediation records are not available for this CVE.

References

aix.software.ibm.com / aix/efixes/security/dig_ifix.tar
Patch
labs.idefense.com / intelligence/vulnerabilities/display.php
secunia.com / advisories/27437
Vendor Advisory
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/38169
ibm.com / support/docview.wss
securityfocus.com / bid/26262
Patch
vupen.com / english/advisories/2007/3669