CVE-2026-97222

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreHIGH confidence

Score 5.5 from GitHub Security Advisory published 2026-09-25. A secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A heap use-after-free flaw was found in Gnumeric. When a user opens a crafted Gnumeric workbook containing a malformed SheetObjectComponent element, the XML parser can dereference a freed sheet-object component, causing Gnumeric to crash.

CVSS v3
5.5
EG Score
5.5MEDIUMhigh confidence
EG Risk
25
EG Risk 25/100CISA SSVC

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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.1%
EPSS %ILE
1st
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 25, 2026

Last Modified

September 30, 2026

Advisory Details (3)

Auto-updated Sep 25, 2026
Patch available. Sources: redhat.
generic

(CVE-2026-97222) AddressSanitizer: heap-use-after-free gnumeric/src/sheet-object-component.c:482 in sheet_object_component_set_component (#897) · Issues · GNOME / gnumeric · GitLab

https://gitlab.gnome.org/GNOME/gnumeric/-/issues/897
redhat

2541397 – (CVE-2026-97222) CVE-2026-97222 gnumeric: gnumeric: heap use-after-free when opening a malformed workbook

https://bugzilla.redhat.com/show_bug.cgi?id=2541397
redhat Patch Available

CVE-2026-97222 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-97222

Vendor Advisories for CVE-2026-97222(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
gnumeric1.12.55-1, 1.12.56-1, 1.12.56-2, 1.12.57-1, 1.12.57-1.1
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
gnumeric1.12.57-1.1
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
gnumeric1.12.57-1.1
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 33× 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.

  1. 2026-10-04 23:23 UTCEPSS rescore
  2. 2026-10-04 22:30 UTCGHSA enrichment
  3. 2026-10-03 21:55 UTCEG score recompute
  4. 2026-10-03 21:55 UTCGHSA enrichment
  5. 2026-10-03 14:26 UTCEPSS rescore
  6. 2026-10-02 21:10 UTCEG score recompute
  7. 2026-10-02 21:09 UTCGHSA enrichment
  8. 2026-10-02 17:57 UTCEPSS rescore
  9. 2026-10-01 20:31 UTCEG score recompute
  10. 2026-10-01 20:30 UTCGHSA enrichment
  11. 2026-10-01 19:51 UTCEPSS rescore
  12. 2026-09-30 19:44 UTCEG score recompute
  13. 2026-09-30 19:44 UTCGHSA enrichment
  14. 2026-09-30 15:04 UTCEPSS rescore
  15. 2026-09-29 20:07 UTCEG score recompute
  16. 2026-09-29 20:07 UTCGHSA enrichment
  17. 2026-09-28 19:33 UTCEG score recompute
  18. 2026-09-28 19:32 UTCGHSA enrichment
  19. 2026-09-28 13:52 UTCEPSS rescore
  20. 2026-09-28 13:52 UTCEPSS rescore
  21. 2026-09-27 18:56 UTCEG score recompute
  22. 2026-09-27 18:56 UTCGHSA enrichment
  23. 2026-09-27 13:49 UTCEPSS rescore
  24. 2026-09-26 18:21 UTCEG score recompute
  25. 2026-09-26 18:21 UTCGHSA enrichment
Show 8 more
  1. 2026-09-26 15:59 UTCEPSS rescore
  2. 2026-09-25 17:44 UTCEG score recompute
  3. 2026-09-25 17:44 UTCGHSA enrichment
  4. 2026-09-25 16:25 UTCEG score recompute
  5. 2026-09-25 16:25 UTCGHSA enrichment
  6. 2026-09-25 14:22 UTCEG score recompute
  7. 2026-09-25 14:02 UTCEG score recompute
  8. 2026-09-25 13:59 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-97222?
CVE-2026-97222 is a medium vulnerability published on September 25, 2026. A heap use-after-free flaw was found in Gnumeric. When a user opens a crafted Gnumeric workbook containing a malformed SheetObjectComponent element, the XML parser can dereference a freed sheet-object component, causing Gnumeric to crash.
When was CVE-2026-97222 disclosed?
CVE-2026-97222 was first published on September 25, 2026, with the most recent update on September 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-97222 actively exploited?
CVE-2026-97222 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-97222?
CVE-2026-97222 has a CVSS base score of 5.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-97222?
A fix for CVE-2026-97222 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-97222 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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