CVE-2022-45063

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

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, GitHub Security Advisory, NVD CVSS v3
Trending — 5 sources updated this week

Also known asEUVD-2022-47985 (ENISA EUVD) · GHSA-3cch-wj7f-8g8x (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 5.4%CVSS: 9.8Exploit: None knownExposed services: Not assessed

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
9.8CRITICALmedium confidence
EG Risk
61
EG Risk 61/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation5.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
5.4%
EPSS %ILE
92nd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
5.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-03). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

November 10, 2022

Last Modified

April 8, 2026

Advisory Details (10)

Auto-updated Oct 9, 2026
Patch available.
Web page

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

https://security.gentoo.org/glsa/202211-09
Web page

Xterm code execution via font ops | Hacker News

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

[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/
Web page

[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/
Web page

[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/
Web page

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

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

oss-security - iTerm2 3.5.x title reporting bug

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

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

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

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

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

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatxterm-0:366-9.el9_4.12026-10-29redhat
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.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
xterm366-1 ... 410-1 (48 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
xterm—
  • every version up to 375-1: fixed in 375-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
xterm—
  • every version up to 375-1: fixed in 375-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
xterm—
  • every version up to 375-1: fixed in 375-1
—

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 31× in last 7d / 106× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 308 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 208 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-04 16:30 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  2. 2026-11-04 09:37 UTCEG score recompute
  3. 2026-11-04 09:37 UTCVendor advisory
  4. 2026-11-04 09:37 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  5. 2026-11-04 07:55 UTCOSV refresh
  6. 2026-11-03 16:39 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  7. 2026-11-03 11:52 UTCEG score recompute
  8. 2026-11-03 11:52 UTCVendor advisory
  9. 2026-11-03 11:52 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  10. 2026-11-02 16:39 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  11. 2026-11-02 14:07 UTCEG score recompute
  12. 2026-11-02 14:07 UTCVendor advisory
  13. 2026-11-02 14:07 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  14. 2026-11-01 16:30 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  15. 2026-11-01 16:21 UTCVendor advisory
  16. 2026-11-01 16:21 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-10-31 18:30 UTCEG score recompute
  18. 2026-10-31 18:30 UTCVendor advisory
  19. 2026-10-31 18:30 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-10-31 16:29 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  21. 2026-10-30 20:37 UTCEG score recompute
  22. 2026-10-30 20:37 UTCVendor advisory
  23. 2026-10-30 20:37 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-10-30 16:30 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  25. 2026-10-29 22:53 UTCEG score recompute
Show 75 more
  1. 2026-10-29 22:53 UTCVendor advisory
  2. 2026-10-29 22:53 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-10-29 16:29 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  4. 2026-10-29 01:09 UTCEG score recompute
  5. 2026-10-29 01:09 UTCVendor advisory
  6. 2026-10-29 01:09 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-10-28 16:28 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  8. 2026-10-28 03:24 UTCEG score recompute
  9. 2026-10-28 03:24 UTCVendor advisory
  10. 2026-10-28 03:24 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-10-27 16:28 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  12. 2026-10-27 05:32 UTCEG score recompute
  13. 2026-10-27 05:32 UTCVendor advisory
  14. 2026-10-27 05:31 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-10-26 16:28 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  16. 2026-10-26 03:43 UTCVendor advisory
  17. 2026-10-26 03:43 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  18. 2026-10-25 17:57 UTCEG score recompute
  19. 2026-10-25 16:29 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  20. 2026-10-25 05:58 UTCEG score recompute
  21. 2026-10-25 05:58 UTCVendor advisory
  22. 2026-10-25 05:58 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-10-24 16:29 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  24. 2026-10-24 08:13 UTCEG score recompute
  25. 2026-10-24 08:13 UTCVendor advisory
  26. 2026-10-24 08:13 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  27. 2026-10-23 16:28 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  28. 2026-10-23 10:28 UTCEG score recompute
  29. 2026-10-23 10:28 UTCVendor advisory
  30. 2026-10-23 10:28 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  31. 2026-10-22 16:30 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  32. 2026-10-22 12:44 UTCEG score recompute
  33. 2026-10-22 12:44 UTCVendor advisory
  34. 2026-10-22 12:44 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  35. 2026-10-21 16:29 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  36. 2026-10-21 15:00 UTCVendor advisory
  37. 2026-10-21 14:59 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  38. 2026-10-20 16:40 UTCEG score recompute
  39. 2026-10-20 16:40 UTCVendor advisory
  40. 2026-10-20 16:40 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  41. 2026-10-20 16:29 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  42. 2026-10-19 18:02 UTCEG score recompute
  43. 2026-10-19 18:02 UTCVendor advisory
  44. 2026-10-19 18:02 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  45. 2026-10-19 16:28 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  46. 2026-10-18 20:15 UTCEG score recompute
  47. 2026-10-18 20:15 UTCVendor advisory
  48. 2026-10-18 20:15 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  49. 2026-10-18 16:28 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  50. 2026-10-18 08:24 UTCEG score recompute
  51. 2026-10-17 22:30 UTCEG score recompute
  52. 2026-10-17 22:30 UTCVendor advisory
  53. 2026-10-17 22:29 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  54. 2026-10-17 16:29 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  55. 2026-10-17 00:45 UTCEG score recompute
  56. 2026-10-17 00:45 UTCVendor advisory
  57. 2026-10-17 00:44 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  58. 2026-10-16 16:35 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  59. 2026-10-16 00:42 UTCEG score recompute
  60. 2026-10-16 00:42 UTCVendor advisory
  61. 2026-10-16 00:41 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  62. 2026-10-15 16:28 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  63. 2026-10-14 19:19 UTCEG score recompute
  64. 2026-10-14 19:19 UTCVendor advisory
  65. 2026-10-14 19:19 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  66. 2026-10-14 16:29 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  67. 2026-10-13 16:29 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  68. 2026-10-13 15:42 UTCVendor advisory
  69. 2026-10-13 15:42 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  70. 2026-10-12 17:56 UTCEG score recompute
  71. 2026-10-12 17:56 UTCVendor advisory
  72. 2026-10-12 17:55 UTCGHSA enrichmentGHSA-3cch-wj7f-8g8x · GitHub severity CRITICAL · GitHub CVSS 9.8
  73. 2026-10-12 16:30 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
  74. 2026-10-11 22:08 UTCEG score recompute
  75. 2026-10-11 13:44 UTCEPSS rescoreEPSS 5.4% · 92nd percentile

Frequently asked(5)

What is CVE-2022-45063?
CVE-2022-45063 is a critical-severity vulnerability; its CVE record was 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 the CVE record for CVE-2022-45063 published?
The CVE record for CVE-2022-45063 was published on November 10, 2022. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of April 8, 2026; the record at its source may have been updated since.
Is CVE-2022-45063 actively exploited?
CVE-2022-45063 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5.4% probability of exploitation in the next 30 days (92nd percentile of EPSS-scored CVEs).
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?
A fix for CVE-2022-45063 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2022-45063 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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