CVE-2025-71382

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-23. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.5Exploit: None knownExposed: 0

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

MuPDF before 1.27.0-rc1 contains an uncontrolled recursion vulnerability in the EPUB CSS rendering engine that allows remote attackers to cause a denial of service by supplying a maliciously crafted EPUB file with deeply nested HTML elements and inline CSS styles. The function value_from_inheritable_property() in css-apply.c recurses through the CSS property inheritance chain without a depth limit, exhausting the process stack and causing a crash in any application using MuPDF for EPUB rendering.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity65% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
46%
KEV
Not listed

Published

June 23, 2026

Last Modified

July 14, 2026

Advisory Details (3)

Auto-updated Jun 25, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

MuPDF < 1.27.0-rc1 Stack Exhaustion DoS via EPUB CSS Rendering | Advisories | VulnCheck

https://www.vulncheck.com/advisories/mupdf-rc1-stack-exhaustion-dos-via-epub-css-rendering
github_commit

commit 70b71ab22e6d (ArtifexSoftware/mupdf)

Fix landed in ArtifexSoftware/mupdf commit 70b71ab22e6d — awaiting tagged release

https://github.com/ArtifexSoftware/mupdf/commit/70b71ab22e6de4d4c44cd301c88231f623a4e94e
generic

708840 – Stack overflow in css-parse.c causing excessive recursion due epub file

https://bugs.ghostscript.com/show_bug.cgi?id=708840

Vendor Advisories for CVE-2025-71382(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
mupdf1.17.0+ds1-2 ... 1.27.0+ds1-6 (38 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
mupdf1.21.1+ds2-1 ... 1.28.2+ds1-2 (32 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
mupdf1.25.1+ds1-6 ... 1.28.2+ds1-2 (14 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
mupdf1.25.1+ds1-6, 1.25.1+ds1-7, 1.25.1+ds1-8, 1.25.1+ds1-9, 1.27.0+ds1-11.27.0+ds1-2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 48× 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.

Showing the most recent 100 of 172 total refreshes for this CVE.

  1. 2026-09-11 14:52 UTCEPSS rescore
  2. 2026-09-11 09:36 UTCEPSS rescore
  3. 2026-09-10 09:34 UTCEPSS rescore
  4. 2026-09-08 22:00 UTCEPSS rescore
  5. 2026-09-07 16:00 UTCEPSS rescore
  6. 2026-09-06 13:47 UTCEPSS rescore
  7. 2026-09-04 05:06 UTCEPSS rescore
  8. 2026-09-02 14:11 UTCEPSS rescore
  9. 2026-09-01 13:53 UTCEPSS rescore
  10. 2026-08-30 20:25 UTCEG score recompute
  11. 2026-08-30 20:25 UTCGHSA enrichment
  12. 2026-08-30 01:21 UTCEPSS rescore
  13. 2026-08-28 21:40 UTCEPSS rescore
  14. 2026-08-27 14:24 UTCEPSS rescore
  15. 2026-08-26 14:45 UTCEPSS rescore
  16. 2026-08-25 13:48 UTCEPSS rescore
  17. 2026-08-24 14:16 UTCEPSS rescore
  18. 2026-08-24 13:54 UTCEG score recompute
  19. 2026-08-24 13:54 UTCGHSA enrichment
  20. 2026-08-23 11:54 UTCEG score recompute
  21. 2026-08-23 11:54 UTCGHSA enrichment
  22. 2026-08-23 00:18 UTCEPSS rescore
  23. 2026-08-22 13:46 UTCEG score recompute
  24. 2026-08-22 13:46 UTCGHSA enrichment
  25. 2026-08-21 23:48 UTCEPSS rescore
Show 75 more
  1. 2026-08-21 05:53 UTCEG score recompute
  2. 2026-08-21 05:53 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 07:45 UTCEG score recompute
  5. 2026-08-20 07:45 UTCGHSA enrichment
  6. 2026-08-19 17:03 UTCEPSS rescore
  7. 2026-08-19 04:48 UTCEG score recompute
  8. 2026-08-19 04:48 UTCGHSA enrichment
  9. 2026-08-18 13:48 UTCEPSS rescore
  10. 2026-08-17 13:46 UTCEPSS rescore
  11. 2026-08-16 20:12 UTCEG score recompute
  12. 2026-08-16 20:12 UTCGHSA enrichment
  13. 2026-08-16 14:55 UTCEPSS rescore
  14. 2026-08-16 02:14 UTCEPSS rescore
  15. 2026-08-15 21:19 UTCEG score recompute
  16. 2026-08-15 21:19 UTCGHSA enrichment
  17. 2026-08-15 01:30 UTCEPSS rescore
  18. 2026-08-14 23:10 UTCGHSA enrichment
  19. 2026-08-14 01:02 UTCEG score recompute
  20. 2026-08-14 01:02 UTCGHSA enrichment
  21. 2026-08-13 22:00 UTCEPSS rescore
  22. 2026-08-13 02:54 UTCEG score recompute
  23. 2026-08-13 02:54 UTCGHSA enrichment
  24. 2026-08-12 13:50 UTCEPSS rescore
  25. 2026-08-12 04:46 UTCEG score recompute
  26. 2026-08-12 04:46 UTCGHSA enrichment
  27. 2026-08-11 13:42 UTCEPSS rescore
  28. 2026-08-11 06:34 UTCEG score recompute
  29. 2026-08-11 06:34 UTCGHSA enrichment
  30. 2026-08-10 23:59 UTCEPSS rescore
  31. 2026-08-10 08:26 UTCEG score recompute
  32. 2026-08-10 08:26 UTCGHSA enrichment
  33. 2026-08-09 13:46 UTCEPSS rescore
  34. 2026-08-09 10:18 UTCEG score recompute
  35. 2026-08-09 10:18 UTCGHSA enrichment
  36. 2026-08-08 16:36 UTCEPSS rescore
  37. 2026-08-08 12:10 UTCEG score recompute
  38. 2026-08-08 12:10 UTCGHSA enrichment
  39. 2026-08-07 16:27 UTCEPSS rescore
  40. 2026-08-07 14:02 UTCGHSA enrichment
  41. 2026-08-06 15:55 UTCEG score recompute
  42. 2026-08-06 15:55 UTCGHSA enrichment
  43. 2026-08-06 13:46 UTCEPSS rescore
  44. 2026-08-05 19:17 UTCEPSS rescore
  45. 2026-08-05 17:26 UTCGHSA enrichment
  46. 2026-08-04 16:39 UTCEG score recompute
  47. 2026-08-04 16:39 UTCGHSA enrichment
  48. 2026-08-04 10:37 UTCEPSS rescore
  49. 2026-08-03 18:31 UTCEG score recompute
  50. 2026-08-03 18:31 UTCGHSA enrichment
  51. 2026-08-03 10:35 UTCEPSS rescore
  52. 2026-08-02 20:19 UTCEG score recompute
  53. 2026-08-02 20:19 UTCGHSA enrichment
  54. 2026-08-02 02:26 UTCEPSS rescore
  55. 2026-08-01 22:11 UTCEG score recompute
  56. 2026-08-01 22:11 UTCGHSA enrichment
  57. 2026-08-01 04:15 UTCEPSS rescore
  58. 2026-08-01 00:03 UTCGHSA enrichment
  59. 2026-07-31 00:42 UTCEG score recompute
  60. 2026-07-31 00:42 UTCGHSA enrichment
  61. 2026-07-30 16:27 UTCEPSS rescore
  62. 2026-07-30 02:34 UTCEG score recompute
  63. 2026-07-30 02:34 UTCGHSA enrichment
  64. 2026-07-30 01:30 UTCEPSS rescore
  65. 2026-07-29 01:15 UTCEG score recompute
  66. 2026-07-29 01:15 UTCGHSA enrichment
  67. 2026-07-27 17:46 UTCEG score recompute
  68. 2026-07-27 17:46 UTCGHSA enrichment
  69. 2026-07-27 14:13 UTCEPSS rescore
  70. 2026-07-26 15:52 UTCEG score recompute
  71. 2026-07-26 15:52 UTCGHSA enrichment
  72. 2026-07-26 14:54 UTCEPSS rescore
  73. 2026-07-26 14:54 UTCEPSS rescore
  74. 2026-07-25 14:17 UTCEPSS rescore
  75. 2026-07-25 14:17 UTCEPSS rescore

Frequently asked(5)

What is CVE-2025-71382?
CVE-2025-71382 is a medium vulnerability published on June 23, 2026. MuPDF before 1.27.0-rc1 contains an uncontrolled recursion vulnerability in the EPUB CSS rendering engine that allows remote attackers to cause a denial of service by supplying a maliciously crafted EPUB file with deeply nested HTML elements and inline CSS styles. The function…
When was CVE-2025-71382 disclosed?
CVE-2025-71382 was first published in the National Vulnerability Database on June 23, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-71382 actively exploited?
CVE-2025-71382 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 54.0% of all scored CVEs.
What is the CVSS score of CVE-2025-71382?
CVE-2025-71382 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2025-71382?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-71382, 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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