CVE-2026-17510

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-09. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
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.

Crypt::OpenSSL::PKCS12 versions before 1.98 for Perl allow a NULL pointer dereference in print_attribute via a zero length BMPSTRING attribute.

print_attribute() sizes the destination buffer for a BMPSTRING attribute from its declared byte length with Renew(*attribute, length, char). A zero length attribute makes that a zero size reallocation, which Perl implements as a free returning NULL, so the buffer pointer becomes NULL, the following strncpy copies nothing, and the caller dereferences NULL in the strlen() it passes to newSVpvn(). A zero length BMPSTRING is even length, so the ASN.1 decoder accepts it and the value reaches this code. The UTF8STRING, OCTET STRING and BIT STRING arms size on length + 1 or length * 4 + 1 and are unaffected.

Any caller that passes an untrusted PKCS#12 file to info_as_hash() can crash the process. info() prints attribute values directly without sizing a buffer and is unaffected.

CVSS v3
7.5
EG Score
7.5(high)
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
37%
KEV
Not listed

Published

August 9, 2026

Last Modified

August 12, 2026

Advisory Details (1)

Auto-updated Aug 12, 2026
No patch confirmed yet.
generic

Client Challenge

https://metacpan.org/release/JONASBN/Crypt-OpenSSL-PKCS12-1.98/source/Changes.md

Vendor Advisories for CVE-2026-17510(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libcrypt-openssl-pkcs12-perl1.3-1 ... 1.97-1 (13 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libcrypt-openssl-pkcs12-perl1.94-1, 1.95-1, 1.96-1, 1.97-1——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libcrypt-openssl-pkcs12-perl1.94-1, 1.95-1, 1.96-1, 1.97-1——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 29× in last 7d / 52× 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. 2026-08-21 06:11 UTCEG score recompute
  2. 2026-08-21 06:11 UTCGHSA enrichment
  3. 2026-08-20 22:55 UTCEPSS rescore
  4. 2026-08-20 18:53 UTCGHSA enrichment
  5. 2026-08-20 07:35 UTCGHSA enrichment
  6. 2026-08-19 20:18 UTCEG score recompute
  7. 2026-08-19 20:18 UTCGHSA enrichment
  8. 2026-08-19 17:03 UTCEPSS rescore
  9. 2026-08-19 08:59 UTCGHSA enrichment
  10. 2026-08-18 21:40 UTCEG score recompute
  11. 2026-08-18 21:40 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-18 09:55 UTCGHSA enrichment
  14. 2026-08-17 22:38 UTCEG score recompute
  15. 2026-08-17 22:37 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 11:17 UTCGHSA enrichment
  18. 2026-08-16 23:59 UTCEG score recompute
  19. 2026-08-16 23:59 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 12:41 UTCEG score recompute
  22. 2026-08-16 12:41 UTCGHSA enrichment
  23. 2026-08-16 02:14 UTCEPSS rescore
  24. 2026-08-16 01:23 UTCGHSA enrichment
  25. 2026-08-15 14:05 UTCGHSA enrichment
Show 27 more
  1. 2026-08-15 02:47 UTCEG score recompute
  2. 2026-08-15 02:47 UTCGHSA enrichment
  3. 2026-08-15 01:30 UTCEPSS rescore
  4. 2026-08-14 15:29 UTCGHSA enrichment
  5. 2026-08-14 04:12 UTCEG score recompute
  6. 2026-08-14 04:12 UTCGHSA enrichment
  7. 2026-08-13 22:00 UTCEPSS rescore
  8. 2026-08-13 16:54 UTCGHSA enrichment
  9. 2026-08-13 05:36 UTCEG score recompute
  10. 2026-08-13 05:36 UTCGHSA enrichment
  11. 2026-08-12 18:19 UTCGHSA enrichment
  12. 2026-08-12 17:51 UTCEG score recompute▲ 7.50
  13. 2026-08-12 17:51 UTCGHSA enrichment
  14. 2026-08-12 17:50 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  15. 2026-08-12 13:50 UTCEPSS rescore
  16. 2026-08-12 01:54 UTCEG score recompute
  17. 2026-08-12 01:54 UTCGHSA enrichment
  18. 2026-08-11 13:42 UTCEPSS rescore
  19. 2026-08-11 00:00 UTCEPSS rescore
  20. 2026-08-09 13:46 UTCEPSS rescore
  21. 2026-08-09 04:21 UTCGHSA enrichment
  22. 2026-08-09 04:20 UTCNVD update
  23. 2026-08-09 03:40 UTCGHSA enrichment
  24. 2026-08-09 03:40 UTCMITRE cvelistV5
  25. 2026-08-09 02:24 UTCNVD update
  26. 2026-08-09 01:31 UTCEG score recompute
  27. 2026-08-09 01:31 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-17510?
CVE-2026-17510 is a high vulnerability published on August 9, 2026. Crypt::OpenSSL::PKCS12 versions before 1.98 for Perl allow a NULL pointer dereference in print_attribute via a zero length BMPSTRING attribute. print_attribute() sizes the destination buffer for a BMPSTRING attribute from its declared byte length with Renew(attribute, length, char). A zero length…
When was CVE-2026-17510 disclosed?
CVE-2026-17510 was first published in the National Vulnerability Database on August 9, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-17510 actively exploited?
CVE-2026-17510 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 62.7% of all scored CVEs.
What is the CVSS score of CVE-2026-17510?
CVE-2026-17510 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-17510?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-17510, 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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