CVE-2026-112553

HIGHPre-NVD 7.87.8
EchelonGraph scoreHIGH confidence

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

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-10-26. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory

Also known asEUVD-2026-110377 (ENISA EUVD) · GHSA-f36w-77c8-492q (GitHub Security Advisories)Source: ENISA EUVD

7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Processing a maliciously crafted file may lead to unexpected app termination.

CVSS v3
7.8
EG Score
7.8HIGHhigh confidence
EG Risk
35
EG Risk 35/100

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)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (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: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
8th
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 (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). 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; Track* at high (mission-essential systems).CISA 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 SSVC and BOD 26-04 blocks below.

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

The CVE record names the fixed release. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (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)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 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

October 26, 2026

Last Modified

November 6, 2026

Advisory Details (3)

Auto-updated Nov 4, 2026
Fix named in the CVE record.
Web page

About the security content of macOS Sequoia 15.8.2 - Apple Support

https://support.apple.com/en-us/149523
Web page

About the security content of macOS Tahoe 26.7.2 - Apple Support

https://support.apple.com/en-us/149522
Web page

About the security content of macOS Golden Gate 27.2 - Apple Support

https://support.apple.com/en-us/149521

Vendor Advisories for CVE-2026-112553(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 28× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

  1. 2026-11-13 16:50 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-11-13 12:47 UTCEchelonGraph re-scored
  3. 2026-11-13 12:47 UTCGHSA enrichmentGHSA-f36w-77c8-492q · GitHub severity HIGH · GitHub CVSS 7.8
  4. 2026-11-12 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  5. 2026-11-11 16:38 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  6. 2026-11-10 16:42 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  7. 2026-11-09 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  8. 2026-11-08 16:38 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  9. 2026-11-07 16:38 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-11-06 19:09 UTCEchelonGraph re-scored
  11. 2026-11-06 19:09 UTCGHSA enrichmentGHSA-f36w-77c8-492q · GitHub severity HIGH · GitHub CVSS 7.8
  12. 2026-11-06 16:36 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  13. 2026-11-05 16:36 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  14. 2026-11-04 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  15. 2026-11-04 16:27 UTCGHSA enrichmentGHSA-f36w-77c8-492q
  16. 2026-11-04 15:21 UTCEchelonGraph re-scoredFirst assessed: 7.8 HIGH
  17. 2026-11-04 15:21 UTCGHSA enrichmentGHSA-f36w-77c8-492q
  18. 2026-11-04 15:20 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  19. 2026-11-03 16:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  20. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  21. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  22. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  23. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  24. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  25. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.2% · 11th percentile
Show 7 more
  1. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  2. 2026-10-27 15:15 UTCGHSA enrichmentGHSA-f36w-77c8-492q
  3. 2026-10-26 22:12 UTCGHSA enrichmentGHSA-f36w-77c8-492q
  4. 2026-10-26 21:27 UTCNVD update
  5. 2026-10-26 21:01 UTCENISA EUVD ID recordedEUVD-2026-110377 · Source: ENISA EUVD
  6. 2026-10-26 20:52 UTCEchelonGraph re-scored
  7. 2026-10-26 20:50 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-112553?
CVE-2026-112553 is a high-severity vulnerability; its CVE record was published on October 26, 2026. An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Processing a maliciously crafted file may lead to unexpected app termination.
When was the CVE record for CVE-2026-112553 published?
The CVE record for CVE-2026-112553 was published on October 26, 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 November 6, 2026; the record at its source may have been updated since.
Is CVE-2026-112553 actively exploited?
CVE-2026-112553 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-112553?
CVE-2026-112553 has a CVSS v3.1 base score of 7.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-112553?
The CVE record for CVE-2026-112553 names the fix: "This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2." The vendor advisories EchelonGraph has for CVE-2026-112553 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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