CVE-2026-71394

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 80% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

GNU Emacs for Android improperly validates the table header input in sfnt_read_table_directory() in src/sfnt.c. Due to an incorrect comparison variable in the read-length check, a crafted font file that claims to contain more table directory entries than actually present causes the parser to return a struct with uninitialized heap memory in the table directory entries. An attacker can deliver a malicious font file via email, EWW (Emacs Web Wowser), or documents with custom faces, causing Emacs to load it. This leads to the use of uninitialized heap data in subsequent table lookups, potentially resulting in information disclosure, crashes, or arbitrary memory access on 32-bit targets.

This issue is fixed after commit 7621ee1d01229d50e5c0cddea6bf0b01095a62cf

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

August 10, 2026

Last Modified

August 10, 2026

Advisory Details (2)

Auto-updated Aug 10, 2026
No patch confirmed yet.
generic

GNU Emacs - GNU Project

https://www.gnu.org/savannah-checkouts/gnu/emacs/emacs.html
generic

Vulnerabilities in GNU Emacs software | CERT Polska

https://cert.pl/en/posts/2026/08/CVE-2026-71391

Vendor Advisories for CVE-2026-71394(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 24× in last 7d / 38× 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. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 20:24 UTCGHSA enrichment
  3. 2026-08-19 22:25 UTCEG score recompute
  4. 2026-08-19 22:25 UTCGHSA enrichment
  5. 2026-08-19 17:04 UTCEPSS rescore
  6. 2026-08-19 00:24 UTCEG score recompute
  7. 2026-08-19 00:23 UTCGHSA enrichment
  8. 2026-08-18 13:49 UTCEPSS rescore
  9. 2026-08-18 13:49 UTCEPSS rescore
  10. 2026-08-18 02:23 UTCEG score recompute
  11. 2026-08-18 02:23 UTCGHSA enrichment
  12. 2026-08-17 13:47 UTCEPSS rescore
  13. 2026-08-17 04:21 UTCEG score recompute
  14. 2026-08-17 04:21 UTCGHSA enrichment
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 06:21 UTCEG score recompute
  18. 2026-08-16 06:21 UTCGHSA enrichment
  19. 2026-08-16 02:15 UTCEPSS rescore
  20. 2026-08-15 08:22 UTCEG score recompute
  21. 2026-08-15 08:22 UTCGHSA enrichment
  22. 2026-08-15 01:31 UTCEPSS rescore
  23. 2026-08-14 10:22 UTCEG score recompute
  24. 2026-08-14 10:22 UTCGHSA enrichment
  25. 2026-08-13 22:00 UTCEPSS rescore
Show 13 more
  1. 2026-08-13 12:22 UTCGHSA enrichment
  2. 2026-08-12 14:23 UTCEG score recompute
  3. 2026-08-12 14:23 UTCGHSA enrichment
  4. 2026-08-12 13:51 UTCEPSS rescore
  5. 2026-08-11 16:23 UTCEG score recompute
  6. 2026-08-11 16:23 UTCGHSA enrichment
  7. 2026-08-10 18:24 UTCEG score recompute
  8. 2026-08-10 18:24 UTCGHSA enrichment
  9. 2026-08-10 17:55 UTCEG score recompute
  10. 2026-08-10 17:55 UTCGHSA enrichment
  11. 2026-08-10 11:20 UTCEG score recompute
  12. 2026-08-10 10:31 UTCEG score recompute
  13. 2026-08-10 10:31 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-71394?
CVE-2026-71394 is a medium vulnerability published on August 10, 2026. GNU Emacs for Android improperly validates the table header input in sfntreadtable_directory() in src/sfnt.c. Due to an incorrect comparison variable in the read-length check, a crafted font file that claims to contain more table directory entries than actually present causes the parser to return a…
When was CVE-2026-71394 disclosed?
CVE-2026-71394 was first published in the National Vulnerability Database on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71394 actively exploited?
CVE-2026-71394 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 79.5% of all scored CVEs.
What is the CVSS score of CVE-2026-71394?
CVE-2026-71394 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-71394?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-71394, 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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