SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2005-0022

Buffer overflow in the spa_base64_to_bits function in Exim before 4.43, as originally obtained from Samba code, and as called by the auth_spa_client function, may allow attackers to execute arbitrary code during SPA authentication.

MEDIUM 4.6EPSS 0.72%

Does this matter?

Lower severity and a low EPSS score (0.72%). Track it; it rarely justifies an emergency change on its own.

Description

Buffer overflow in the spa_base64_to_bits function in Exim before 4.43, as originally obtained from Samba code, and as called by the auth_spa_client function, may allow attackers to execute arbitrary code during SPA authentication.

CVSS 2.0
4.6 MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
EPSS
0.72% probability · 54th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
university of cambridge/exim
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 0.72%26 October 202626 October 2026

EPSS 0.7% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.