CVE-2022-27781

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-06-03. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

libcurl provides the CURLOPT_CERTINFO option to allow applications torequest details to be returned about a server's certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
—
EPSS
82.5%
KEV
Not listed

Published

June 2, 2022

Last Modified

May 27, 2026

References (11)

Vendor Advisories for CVE-2022-27781(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntucurl (7.81.0-1ubuntu1.2) @ jammy2026-05-22ubuntu
ubuntucurl (7.47.0-1ubuntu2.19+esm4) @ xenial2026-05-22ubuntu
redhatjbcs-httpd24-curl-0:7.86.0-2.el7jbcs2022-12-08redhat
redhatjbcs-httpd24-curl2022-12-08redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(3)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 12× in last 7d / 48× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 144 total refreshes for this CVE.

  1. 2026-07-22 22:57 UTCEG score recompute
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Frequently asked(5)

What is CVE-2022-27781?
CVE-2022-27781 is a high vulnerability published on June 2, 2022. libcurl provides the CURLOPT_CERTINFO option to allow applications torequest details to be returned about a server's certificate chain.Due to an erroneous function, a malicious server could make libcurl built withNSS get stuck in a never-ending busy-loop when trying to retrieve thatinformation.
When was CVE-2022-27781 disclosed?
CVE-2022-27781 was first published in the National Vulnerability Database on June 2, 2022, with the most recent update on May 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-27781 actively exploited?
CVE-2022-27781 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 82.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-27781?
CVE-2022-27781 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2022-27781?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-27781, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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