CVE-2026-35025

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-24. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

ProFTPD through 1.3.9b and 1.3.10rc2 contains an access control bypass vulnerability that allows authenticated FTP users to circumvent Directory ACL restrictions by prefixing paths with /proc/self/root in the RNFR command handler. Attackers can exploit the unresolved symlink components in dir_canonical_path() to cause dir_check() to perform lexical path comparisons that match no configured Directory block, enabling rename operations on files in DenyAll-protected directories and subsequent retrieval of those files. Mitigation: Sessions configured with DefaultRoot (chroot) are not affected, as chroot changes the directory to which /proc/self/root resolves.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

June 24, 2026

Last Modified

July 14, 2026

Advisory Details (3)

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

ProFTPD ACL Bypass via /proc/self/root Path Prefix in RNFR | Advisories | VulnCheck

https://www.vulncheck.com/advisories/proftpd-acl-bypass-via-proc-self-root-path-prefix-in-rnfr
generic

Security Advisory: Post-authentication access control bypass via `/proc/self/root` in `RNFR` · Issue #2170 · proftpd/proftpd · GitHub

https://github.com/proftpd/proftpd/issues/2170
generic

The ProFTPD Project: Home

http://www.proftpd.org/

Vendor Advisories for CVE-2026-35025(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
proftpd-dfsg1.3.7a+dfsg-12 ... 1.3.9~dfsg-5 (36 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
proftpd-dfsg1.3.8+dfsg-4 ... 1.3.9~dfsg-5 (28 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
proftpd-dfsg1.3.8.c+dfsg-4 ... 1.3.9~dfsg-5 (12 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
proftpd-dfsg1.3.8.c+dfsg-4 ... 1.3.9~dfsg-5 (10 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 63× 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 221 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-35025?
CVE-2026-35025 is a high vulnerability published on June 24, 2026. ProFTPD through 1.3.9b and 1.3.10rc2 contains an access control bypass vulnerability that allows authenticated FTP users to circumvent Directory ACL restrictions by prefixing paths with /proc/self/root in the RNFR command handler. Attackers can exploit the unresolved symlink components in…
When was CVE-2026-35025 disclosed?
CVE-2026-35025 was first published in the National Vulnerability Database on June 24, 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-2026-35025 actively exploited?
CVE-2026-35025 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 72.0% of all scored CVEs.
What is the CVSS score of CVE-2026-35025?
CVE-2026-35025 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-35025?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-35025, 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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