CVE-2026-17435

LOWPre-NVD 2.52.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This low-severity CVE scores 2.5 under CISA-ADP (Vulnrichment) CVSS v3.1 (NVD's own analysis pending). EPSS exploit probability: 0.1% (2nd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from CISA-ADP (Vulnrichment) CVSS v3.1
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS
2.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 2.5Exploit: None knownExposed services: Not assessed

Upgrade to version 0.4.0 or later (from the CVE record's solution, CPAN Security Group) — apply it.

File::Rotate::Simple versions before 0.4.0 for Perl create the target of dangling symlinks when rotating files.

When the file to be rotated is a symbolic link to a missing file, and the touch option is enabled, then the rotate method assumes that the file is absent (since the existence check is against the target), and does not rotate it. But it touches the file, which creates the target.

An attacker that has the ability to create the symlink can use this to create an arbitrary file with permissions of the process rotating the files (which may be different from the process that normally writes to the log file that is being rotated).

Note that the touch option is disabled by default.

CVSS v3
2.5
EG Score
2.5LOWmedium confidence
EG Risk
11
EG Risk 11/100

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 (value × EchelonGraph’s weight)
Severity25% × 45%
The EG Score, 2.5 of 10.
Exploitation0.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: Upgrade to version 0.4.0 or later (from the CVE record's solution, CPAN Security Group). Apply it within your standard update timelines.
EPSS PROB
0.1%
EPSS %ILE
2nd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

Upgrade to version 0.4.0 or later (from the CVE record's solution, CPAN Security Group). Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 7, 2026

Last Modified

August 26, 2026

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 32× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  2. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  3. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  4. 2026-10-12 16:29 UTCEG score recompute
  5. 2026-10-11 20:08 UTCEG score recompute
  6. 2026-10-11 17:21 UTCEG score recompute
  7. 2026-10-11 14:53 UTCEG score recompute
  8. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  9. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  10. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  11. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  12. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  13. 2026-10-07 00:02 UTCEG score recompute
  14. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  15. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  16. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  17. 2026-10-04 05:42 UTCEG score recompute
  18. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  19. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  20. 2026-09-30 22:54 UTCEG score recompute
  21. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  22. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  23. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  24. 2026-09-28 02:27 UTCEG score recompute
  25. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
Show 59 more
  1. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  2. 2026-09-25 04:14 UTCEG score recompute
  3. 2026-09-22 00:41 UTCEG score recompute
  4. 2026-09-18 22:16 UTCEG score recompute
  5. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  6. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  7. 2026-09-16 02:50 UTCEG score recompute
  8. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  9. 2026-09-13 07:00 UTCEG score recompute
  10. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  11. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  12. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  13. 2026-09-10 12:40 UTCEG score recompute
  14. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  15. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  16. 2026-09-07 17:43 UTCEG score recompute
  17. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  18. 2026-09-04 11:58 UTCEG score recompute
  19. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  20. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  21. 2026-09-01 17:38 UTCEG score recompute
  22. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  23. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  24. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  25. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  26. 2026-08-29 15:57 UTCEG score recompute
  27. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  28. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  29. 2026-08-26 17:28 UTCEG score recompute
  30. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  31. 2026-08-25 17:18 UTCEG score recompute
  32. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  33. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  34. 2026-08-22 22:41 UTCEG score recompute
  35. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  36. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  37. 2026-08-20 04:22 UTCEG score recompute
  38. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  39. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  40. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  41. 2026-08-17 09:59 UTCEG score recompute
  42. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  43. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  44. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  45. 2026-08-14 15:39 UTCEG score recompute
  46. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  47. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  48. 2026-08-11 20:31 UTCEG score recomputeFirst assessed: 2.5 LOW
  49. 2026-08-11 20:30 UTCMITRE cvelistV5CVSS v3 → 2.5 · severity → LOW
  50. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  51. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  52. 2026-08-10 16:53 UTCEG score recompute
  53. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  54. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  55. 2026-08-07 22:32 UTCNVD update
  56. 2026-08-07 21:22 UTCMITRE cvelistV5
  57. 2026-08-07 19:28 UTCNVD update
  58. 2026-08-07 19:12 UTCEG score recompute
  59. 2026-08-07 19:12 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-17435?
CVE-2026-17435 is a low-severity vulnerability; its CVE record was published on August 7, 2026. File::Rotate::Simple versions before 0.4.0 for Perl create the target of dangling symlinks when rotating files. When the file to be rotated is a symbolic link to a missing file, and the touch option is enabled, then the rotate method assumes that the file is absent (since the existence check is…
When was the CVE record for CVE-2026-17435 published?
The CVE record for CVE-2026-17435 was published on August 7, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of August 26, 2026; the record at its source may have been updated since.
Is CVE-2026-17435 actively exploited?
CVE-2026-17435 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (2nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-17435?
CVE-2026-17435 has a CVSS v3.1 base score of 2.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-17435?
The CVE record's solution for CVE-2026-17435, written by its CNA CPAN Security Group, names the fix: "Upgrade to version 0.4.0 or later."

Dependency Blast Radius

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