CVE-2020-36846

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.66% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 51.3% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-05-30 00:50Z1 YR AGO

Last updated

2025-05-30 22:01Z1 YR AGO

Reserved

2025-05-28

Assigning CNA

CPANSec

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-1395Dependency on Vulnerable Third-Party ComponentClass

Data version

5.1

Document digest

f8e6aad63bb53b884a6c921d0c521b1732f040c2bb21b6fcc93c5caaece34d10

• github.comhttps://github.com/google/brotli/pull/826issue-tracking
• github.comhttps://github.com/advisories/GHSA-5v8v-66v8-mwm7third-party-advisory
• github.comhttps://github.com/timlegge/perl-IO-Compress-Brotli/blob/8b44c83b23bb4658179e1494af4b725a1bc476bc/Changes#L52mitigation
• nvd.nist.govhttps://nvd.nist.gov/vuln/detail/CVE-2020-8927vdb-entry
• github.comhttps://github.com/google/brotli/commit/223d80cfbec8fd346e32906c732c8ede21f0cea6patch