CVE-2026-82077

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.7% (52nd percentile of EPSS-scored CVEs). 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
7.3EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 7.3Exploit: None knownExposed services: Not assessed

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

An improper limitation of a pathname to a restricted directory (path traversal) vulnerability in the Scan-to-Fax component of PaperCut NG and PaperCut MF allows an authenticated administrator to execute arbitrary commands on the underlying host via crafted fax provider settings.

CVSS v3
7.3
EG Score
7.3HIGHmedium confidence
EG Risk
33
EG Risk 33/100CISA SSVC

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
Severity73% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.7%
EPSS %ILE
52nd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 24, 2026

Last Modified

September 25, 2026

Advisory Details (1)

Auto-updated Sep 24, 2026
No patch confirmed yet.
generic

PaperCut NG/MF Security Bulletin (24 Sep 2026) | PaperCut

https://www.papercut.com/kb/Main/security-bulletin-sep-2026/

Vendor Advisories for CVE-2026-82077(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 28× in last 7d / 49× 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. 2026-10-04 01:13 UTCEG score recompute
  2. 2026-10-04 01:13 UTCGHSA enrichment
  3. 2026-10-03 14:26 UTCEPSS rescore
  4. 2026-10-03 13:26 UTCGHSA enrichment
  5. 2026-10-03 01:38 UTCEG score recompute
  6. 2026-10-03 01:38 UTCGHSA enrichment
  7. 2026-10-02 17:57 UTCEPSS rescore
  8. 2026-10-02 13:50 UTCGHSA enrichment
  9. 2026-10-02 02:00 UTCEG score recompute
  10. 2026-10-02 02:00 UTCGHSA enrichment
  11. 2026-10-01 19:50 UTCEPSS rescore
  12. 2026-10-01 14:12 UTCGHSA enrichment
  13. 2026-10-01 02:24 UTCEG score recompute
  14. 2026-10-01 02:24 UTCGHSA enrichment
  15. 2026-09-30 15:04 UTCEPSS rescore
  16. 2026-09-30 14:37 UTCGHSA enrichment
  17. 2026-09-30 02:35 UTCEG score recompute
  18. 2026-09-30 02:35 UTCGHSA enrichment
  19. 2026-09-29 14:47 UTCGHSA enrichment
  20. 2026-09-29 02:59 UTCEG score recompute
  21. 2026-09-29 02:59 UTCGHSA enrichment
  22. 2026-09-28 15:11 UTCEG score recompute
  23. 2026-09-28 15:11 UTCGHSA enrichment
  24. 2026-09-28 13:52 UTCEPSS rescore
  25. 2026-09-28 03:21 UTCGHSA enrichment
Show 24 more
  1. 2026-09-27 15:34 UTCEG score recompute
  2. 2026-09-27 15:34 UTCGHSA enrichment
  3. 2026-09-27 13:48 UTCEPSS rescore
  4. 2026-09-27 03:46 UTCEG score recompute
  5. 2026-09-27 03:46 UTCGHSA enrichment
  6. 2026-09-26 15:59 UTCEPSS rescore
  7. 2026-09-26 15:57 UTCGHSA enrichment
  8. 2026-09-26 04:01 UTCEG score recompute
  9. 2026-09-26 04:01 UTCGHSA enrichment
  10. 2026-09-25 16:11 UTCGHSA enrichment
  11. 2026-09-25 04:24 UTCEG score recompute
  12. 2026-09-25 04:24 UTCGHSA enrichment
  13. 2026-09-25 04:02 UTCEG score recompute
  14. 2026-09-25 04:02 UTCGHSA enrichment
  15. 2026-09-24 21:16 UTCEG score recompute
  16. 2026-09-24 21:16 UTCGHSA enrichment
  17. 2026-09-24 14:04 UTCEPSS rescore
  18. 2026-09-24 13:25 UTCEG score recompute
  19. 2026-09-24 13:25 UTCGHSA enrichment
  20. 2026-09-24 13:01 UTCEG score recompute
  21. 2026-09-24 13:01 UTCGHSA enrichment
  22. 2026-09-24 07:21 UTCEG score recompute
  23. 2026-09-24 06:59 UTCEG score recompute
  24. 2026-09-24 06:59 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-82077?
CVE-2026-82077 is a high vulnerability published on September 24, 2026. An improper limitation of a pathname to a restricted directory (path traversal) vulnerability in the Scan-to-Fax component of PaperCut NG and PaperCut MF allows an authenticated administrator to execute arbitrary commands on the underlying host via crafted fax provider settings.
When was CVE-2026-82077 disclosed?
CVE-2026-82077 was first published on September 24, 2026, with the most recent update on September 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82077 actively exploited?
CVE-2026-82077 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (52nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-82077?
CVE-2026-82077 has a CVSS base score of 7.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-82077?
No fix for CVE-2026-82077 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-82077 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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