CVE-2026-44167

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 90% 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, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

phpseclib is a PHP secure communications library. Prior to 1.0.29, 2.0.54, and 3.0.52, anyone loading untrusted ASN1 files (eg. X509 certificates, RSA PKCS8 private or public keys, etc). This is a bypass of CVE-2024-27355. This vulnerability is fixed in 1.0.29, 2.0.54, and 3.0.52.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

May 12, 2026

Last Modified

May 13, 2026

Advisory Details (2)

Auto-updated May 13, 2026
Patch available. Sources: github.
github Patch Available

CVE-2024-27355 mitigation bypass — OID amplification DoS in ASN1::decodeOID() · Advisory · phpseclib/phpseclib · GitHub

https://github.com/phpseclib/phpseclib/security/advisories/GHSA-3qpq-r242-jqj7
generic

ASN1: reduce length of supported OIDs from 4096 bytes to 128 bytes · phpseclib/phpseclib@d53d202 · GitHub

https://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc

Affected Packages

(11 across 5 ecosystems)
Debian:12(3)
PackageVulnerable rangeFixed inDependents
php-phpseclib2.0.42-1, 2.0.42-1+deb12u1, 2.0.42-1+deb12u2, 2.0.42-1+deb12u32.0.42-1+deb12u5—
php-phpseclib33.0.19-1, 3.0.19-1+deb12u1, 3.0.19-1+deb12u2, 3.0.19-1+deb12u3, 3.0.19-1+deb12u43.0.19-1+deb12u6—
phpseclib1.0.20-1, 1.0.20-1+deb12u1, 1.0.20-1+deb12u2, 1.0.20-1+deb12u31.0.20-1+deb12u5—
Debian:13(3)
PackageVulnerable rangeFixed inDependents
php-phpseclib2.0.48-3, 2.0.48-3+deb13u12.0.48-3+deb13u3—
php-phpseclib33.0.43-2, 3.0.43-2+deb13u13.0.43-2+deb13u3—
phpseclib1.0.23-6, 1.0.23-6+deb13u11.0.23-6+deb13u3—
Debian:11(2)
PackageVulnerable rangeFixed inDependents
php-phpseclib2.0.30-2, 2.0.30-2+deb11u1, 2.0.30-2+deb11u22.0.30-2+deb11u3—
phpseclib1.0.19-3 ... 2.0.1-1 (21 versions)——
Debian:14(2)
PackageVulnerable rangeFixed inDependents
php-phpseclib2.0.48-3 ... 2.0.53-1 (6 versions)2.0.54-1—
php-phpseclib33.0.43-2 ... 3.0.51-1 (11 versions)3.0.52-1—
Packagist(1)
PackageVulnerable rangeFixed inDependents
phpseclib/phpseclib3.0.0 ... 3.0.9 (43 versions)3.0.52—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 26× 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 141 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-44167?
CVE-2026-44167 is a high vulnerability published on May 12, 2026. phpseclib is a PHP secure communications library. Prior to 1.0.29, 2.0.54, and 3.0.52, anyone loading untrusted ASN1 files (eg. X509 certificates, RSA PKCS8 private or public keys, etc). This is a bypass of CVE-2024-27355. This vulnerability is fixed in 1.0.29, 2.0.54, and 3.0.52.
When was CVE-2026-44167 disclosed?
CVE-2026-44167 was first published in the National Vulnerability Database on May 12, 2026, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44167 actively exploited?
CVE-2026-44167 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 89.9% of all scored CVEs.
What is the CVSS score of CVE-2026-44167?
CVE-2026-44167 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-44167?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44167, 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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