CVE-2022-45063

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-11-10. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 5%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

xterm before 375 allows code execution via font ops, e.g., because an OSC 50 response may have Ctrl-g and therefore lead to command execution within the vi line-editing mode of Zsh. NOTE: font ops are not allowed in the xterm default configurations of some Linux distributions.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
61(Track)
EG Risk 61/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation5% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
91.2%
KEV
Not listed

Published

November 10, 2022

Last Modified

April 8, 2026

Advisory Details (10)

Auto-updated May 18, 2026
No patch confirmed yet.
generic

xterm: Arbitrary Code Execution (GLSA 202211-09) — Gentoo security

https://security.gentoo.org/glsa/202211-09
generic

Xterm code execution via font ops | Hacker News

https://news.ycombinator.com/item?id=33546415
generic

[SECURITY] Fedora 36 Update: xterm-375-1.fc36 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IVD3I2ZFXGOY6BA2FNS7WPFMPFBDHFWC/
generic

[SECURITY] Fedora 37 Update: xterm-375-1.fc37 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5T2JI5JCHPTXX2KJU45H2XAHQSFVEJ2Y/
generic

[SECURITY] Fedora 35 Update: xterm-375-1.fc35 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4TPVNTYFFWNTGZJJQAA4MGGFSTXA4XEA/
generic

XTERM - Change Log

https://invisible-island.net/xterm/xterm.log.html
generic

oss-security - Re: iTerm2 3.5.x title reporting bug

http://www.openwall.com/lists/oss-security/2024/06/17/1
generic

oss-security - iTerm2 3.5.x title reporting bug

http://www.openwall.com/lists/oss-security/2024/06/15/1
generic

oss-security - Re: CVE-2022-45063: xterm <375 code execution via font ops

http://www.openwall.com/lists/oss-security/2022/11/10/5
generic

oss-security - CVE-2022-45063: xterm <375 code execution via font ops

http://www.openwall.com/lists/oss-security/2022/11/10/1

Vendor Advisories for CVE-2022-45063(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatxterm-0:366-10.el9_62025-05-13redhat

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(1)

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

Additional Vendor Advisories

(1)

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 11× in last 7d / 39× 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 129 total refreshes for this CVE.

  1. 2026-07-24 14:15 UTCEPSS rescore
  2. 2026-07-23 14:16 UTCEPSS rescore
  3. 2026-07-23 02:15 UTCEG score recompute
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  48. 2026-06-05 09:30 UTCOSV refresh
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Frequently asked(5)

What is CVE-2022-45063?
CVE-2022-45063 is a critical vulnerability published on November 10, 2022. xterm before 375 allows code execution via font ops, e.g., because an OSC 50 response may have Ctrl-g and therefore lead to command execution within the vi line-editing mode of Zsh. NOTE: font ops are not allowed in the xterm default configurations of some Linux distributions.
When was CVE-2022-45063 disclosed?
CVE-2022-45063 was first published in the National Vulnerability Database on November 10, 2022, with the most recent update on April 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-45063 actively exploited?
CVE-2022-45063 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 91.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-45063?
CVE-2022-45063 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2022-45063?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-45063, 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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