Is CVE-2020-28991 in the CISA KEV catalog?

No. CVE-2020-28991 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-28991?

CVE-2020-28991 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2020-28991?

CVE-2020-28991 has an EPSS score of 1.71% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-28991?

Upgrade gitea to 1.12.6 or later.

CVE & CISA-KEV Catalog

CVE-2020-28991

CRITICALEPSS 75th pctl

9.8

CVSS v3

NVD

Description

Gitea 0.9.99 through 1.12.x before 1.12.6 does not prevent a git protocol path that specifies a TCP port number and also contains newlines (with URL encoding) in ParseRemoteAddr in modules/auth/repo_form.go.

How to fix

Remediation Available

giteaNVD

Affected:>= 0.9.99, < 1.12.6Fixed in:1.12.6CVE-2020-28991derived from NVD

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.71%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory1

github.com

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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 2024-11-21.