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CVE-2005-0022

14
FAUCET Score

CVE-2005-0022 describes a buffer overflow vulnerability in the spa_base64_to_bits function within Exim before version 4.43, originating from Samba code. This flaw, triggered during SPA authentication, could allow an attacker to execute arbitrary code. With a CVSS score of 4.6, it is a low-severity local vulnerability, meaning an attacker would need local access to the system to achieve partial confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.40CPE matchmatch criteria
cpe:2.3:a:university_of_cambridge:exim:*:*:*:*:*:*:*:*
4.41CPE matchmatch criteria
cpe:2.3:a:university_of_cambridge:exim:4.41:*:*:*:*:*:*:*
4.42CPE matchmatch criteria
cpe:2.3:a:university_of_cambridge:exim:4.42:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.72%
Probability of exploitation in next 30 days
EPSS Percentile
50.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0072 is in the 85th percentile among its peer group of 3,052 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 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: exim-0:4.43-1.RHEL4.3
View patch
gentoovendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2005-0022Moderate

security flaw

Jan 4, 2005

References

ftp6.us.freebsd.org / pub/mail/exim/ChangeLogs/ChangeLog-4.44
marc.info
security.gentoo.org / glsa/glsa-200501-23.xml
Vendor Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11293
exim.org / mail-archives/exim-users/Week-of-Mon-20050103/msg00028.html
Patch
idefense.com / application/poi/display
redhat.com / support/errata/RHSA-2005-025.html
Patch
securityfocus.com / bid/12188