CVE-2026-118026

UNRATEDCVSS · not yet scoredTrending — 5 sources updated this week

Also known asEUVD-2026-110924 (ENISA EUVD) · GHSA-65jj-p45m-rp83 (GitHub Security Advisories)Source: ENISA EUVD

—
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS v2: —Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

Invalid pointer in the JavaScript: GC component. This vulnerability was fixed in Firefox 159 and Thunderbird 159.

CVSS v3
—
EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
—
EG Risk
—
EPSS PROB
0.1%
EPSS %ILE
3rd
KEV
Not listed

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

EG Severity
Not assessed: no CVSS publishedA missing CVSS is not a severity of zero.
EG Likelihood
0.1% within 30 daysSource: FIRST EPSS. 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
No SSVC decision: EchelonGraph has not assessed this CVECISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the BOD 26-04 block below.

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” 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

October 27, 2026

Last Modified

October 27, 2026

References (3)

Vendor Advisories for CVE-2026-118026(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 14× 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.

  1. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  3. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  4. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  5. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  6. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  7. 2026-10-27 19:26 UTCGHSA enrichmentGHSA-65jj-p45m-rp83
  8. 2026-10-27 19:26 UTCNVD update
  9. 2026-10-27 18:20 UTCGHSA enrichmentGHSA-65jj-p45m-rp83
  10. 2026-10-27 18:19 UTCMITRE cvelistV5
  11. 2026-10-27 15:01 UTCENISA EUVD ID recordedEUVD-2026-110924 · Source: ENISA EUVD
  12. 2026-10-27 14:26 UTCNVD update
  13. 2026-10-27 14:20 UTCEG score recompute
  14. 2026-10-27 14:19 UTCMITRE cvelistV5first tracked

Frequently asked(4)

What is CVE-2026-118026?
CVE-2026-118026 is a vulnerability whose severity is not yet rated; its CVE record was published on October 27, 2026. Invalid pointer in the JavaScript: GC component. This vulnerability was fixed in Firefox 159 and Thunderbird 159.
When was the CVE record for CVE-2026-118026 published?
The CVE record for CVE-2026-118026 was published on October 27, 2026. 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 October 27, 2026; the record at its source may have been updated since.
Is CVE-2026-118026 actively exploited?
CVE-2026-118026 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
How do I remediate CVE-2026-118026?
The CVE record for CVE-2026-118026 names the fix: "This vulnerability was fixed in Firefox 159 and Thunderbird 159." The vendor advisories EchelonGraph has for CVE-2026-118026 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-118026

Explore →

Is Your Infrastructure Affected by CVE-2026-118026?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs