CVE-2026-103507

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (43rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-92299 (ENISA EUVD) · GHSA-w4rv-834f-h4j4 (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan mitigationNo fix is confirmed yet: check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 7.5Exploit: None knownExposed services: Not assessed

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

The CVE record's CNA (Perforce) lists Perforce P4 (Helix Core) versions up to and including 2026.4.1 as affected, and Perforce P4 (Helix Core) versions 2026.4.2 as unaffected. No release containing a fix is confirmed on record.

Perforce P4 Search prior to 2026.4.2 does not restrict file paths written through its logging configuration interface. An attacker holding the service authentication token can write arbitrary files on the host, potentially leading to code execution as the P4 Search service account.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
34
EG Risk 34/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 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 low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.
EPSS PROB
0.5%
EPSS %ILE
43rd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (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

October 5, 2026

Last Modified

October 6, 2026

Advisory Details (1)

Auto-updated Oct 5, 2026
No fix on record yet.

Vendor Advisories for CVE-2026-103507(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 66× 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. 2026-11-02 16:43 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  2. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  3. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  4. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  5. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  6. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  7. 2026-10-27 20:07 UTCEG score recompute
  8. 2026-10-27 20:07 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  9. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  10. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  11. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  12. 2026-10-25 14:56 UTCEG score recompute
  13. 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  14. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  15. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  16. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  17. 2026-10-20 19:15 UTCEG score recompute
  18. 2026-10-20 19:15 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  19. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  20. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  21. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  22. 2026-10-18 05:09 UTCEG score recompute
  23. 2026-10-17 19:43 UTCEG score recompute
  24. 2026-10-17 19:43 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  25. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
Show 41 more
  1. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  2. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  3. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  4. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  5. 2026-10-12 16:40 UTCEG score recompute
  6. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  7. 2026-10-11 21:34 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  8. 2026-10-11 20:15 UTCEG score recompute
  9. 2026-10-11 18:28 UTCEG score recompute
  10. 2026-10-11 15:01 UTCEG score recompute
  11. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  12. 2026-10-11 09:00 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  13. 2026-10-10 20:26 UTCEG score recompute
  14. 2026-10-10 20:26 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  15. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  16. 2026-10-10 07:52 UTCEG score recompute
  17. 2026-10-10 07:51 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  18. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  19. 2026-10-09 19:18 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  20. 2026-10-09 06:44 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  21. 2026-10-08 18:09 UTCEG score recompute
  22. 2026-10-08 18:09 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  23. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  24. 2026-10-08 05:36 UTCEG score recompute
  25. 2026-10-08 05:36 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  26. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  27. 2026-10-07 17:02 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  28. 2026-10-07 04:07 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  29. 2026-10-06 15:33 UTCEG score recompute
  30. 2026-10-06 15:33 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  31. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  32. 2026-10-06 02:57 UTCEG score recompute
  33. 2026-10-06 02:57 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  34. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  35. 2026-10-05 14:23 UTCEG score recompute
  36. 2026-10-05 14:23 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  37. 2026-10-05 13:46 UTCEG score recompute
  38. 2026-10-05 13:46 UTCGHSA enrichmentGHSA-w4rv-834f-h4j4 · GitHub severity HIGH
  39. 2026-10-05 09:24 UTCEG score recompute
  40. 2026-10-05 08:57 UTCEG score recomputeFirst assessed: 7.5 HIGH
  41. 2026-10-05 08:57 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-103507?
CVE-2026-103507 is a high-severity vulnerability; its CVE record was published on October 5, 2026. Perforce P4 Search prior to 2026.4.2 does not restrict file paths written through its logging configuration interface. An attacker holding the service authentication token can write arbitrary files on the host, potentially leading to code execution as the P4 Search service account.
When was CVE-2026-103507 made public?
CVE-2026-103507 was made public on September 30, 2026: that is the date its CVE record's CNA, Perforce, gives for when the vulnerability was made public. The CVE record itself was published on October 5, 2026. EchelonGraph's copy of the record carries a last-modified date of October 6, 2026; the record at its source may have been updated since.
Is CVE-2026-103507 actively exploited?
CVE-2026-103507 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (43rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-103507?
CVE-2026-103507 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-103507?
No fix for CVE-2026-103507 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 CVE record's CNA (Perforce) lists Perforce P4 (Helix Core) versions up to and including 2026.4.1 as affected, and Perforce P4 (Helix Core) versions 2026.4.2 as unaffected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-103507 are linked in the Vendor Advisories panel on this page.

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