Is CVE-2015-8621 in the CISA KEV catalog?

No. CVE-2015-8621 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-8621?

CVE-2015-8621 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2015-8621?

CVE-2015-8621 has an EPSS score of 0.37% (29th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-8621?

Upgrade t-coffee on debian 11 to 11.00.8cbe486-2 or later.

CVE & CISA-KEV Catalog

CVE-2015-8621

MEDIUM

5.5

CVSS v3

NVD

Description

t-coffee before 11.00.8cbe486-2 allows local users to write to ~/.t_coffee globally.

CWE-264Permissions, Privileges, and Access Controls

How to fix

Remediation Available

t-coffeeDebian

Fixed in:11.00.8cbe486-2CVE-2015-8621

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Exploit Intelligence

0.37%probability of exploitation in 30 days

29thpercentile

Low risk: more likely to be exploited than 29% of all known CVEs.

References

Third-Party Advisory5

Related Vulnerabilities

Other CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2012-1456	Medium	4.3	100%	-	-
CVE-2012-1459	Medium	4.3	100%	-	Fix
CVE-2012-1446	Medium	4.3	100%	-	-
CVE-2012-1443	Medium	4.3	100%	-	-
CVE-2012-1442	Medium	4.3	99%	-	-
CVE-2012-1457	Medium	4.3	98%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.