CVE-2026-1586

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-01-29. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 5.3Exploit: NoneExposed: 0

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

A flaw has been found in Open5GS up to 2.7.5. Impacted is the function ogs_gtp2_f_teid_to_ip of the file /sgwc/s11-handler.c of the component SGWC. Executing a manipulation can lead to denial of service. The attack may be performed from remote. The exploit has been published and may be used. It is advisable to implement a patch to correct this issue. The issue report is flagged as already-fixed.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
55(Attend)
EG Risk 55/100SSVC: Attend

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
Severity53% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
40.4%
KEV
Not listed

Published

January 29, 2026

Last Modified

February 23, 2026

References (7)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 43× 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. 2026-07-24 14:17 UTCEPSS rescore
  2. 2026-07-23 14:18 UTCEPSS rescore
  3. 2026-07-23 14:18 UTCEPSS rescore
  4. 2026-07-23 03:05 UTCEG score recompute
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  20. 2026-07-13 22:30 UTCEPSS rescore
  21. 2026-07-13 12:38 UTCOSV refresh
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  1. 2026-07-08 15:15 UTCEPSS rescore
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  17. 2026-06-25 13:49 UTCEPSS rescore
  18. 2026-06-25 08:01 UTCOSV refresh
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  27. 2026-06-19 19:25 UTCEPSS rescore
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  40. 2026-06-08 14:17 UTCEPSS rescore
  41. 2026-06-08 01:54 UTCGHSA enrichment
  42. 2026-06-07 15:25 UTCEPSS rescore
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  44. 2026-06-06 13:47 UTCEPSS rescore
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  50. 2026-06-04 13:12 UTCEPSS rescore
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  55. 2026-06-01 13:51 UTCEPSS rescore
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  63. 2026-05-29 15:03 UTCEG score recompute
  64. 2026-05-29 15:03 UTCGHSA enrichment
  65. 2026-05-29 13:44 UTCEPSS rescore
  66. 2026-05-29 13:44 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-1586?
CVE-2026-1586 is a medium vulnerability published on January 29, 2026. A flaw has been found in Open5GS up to 2.7.5. Impacted is the function ogsgtp2fteidto_ip of the file /sgwc/s11-handler.c of the component SGWC. Executing a manipulation can lead to denial of service. The attack may be performed from remote. The exploit has been published and may be used. It is…
When was CVE-2026-1586 disclosed?
CVE-2026-1586 was first published in the National Vulnerability Database on January 29, 2026, with the most recent update on February 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-1586 actively exploited?
CVE-2026-1586 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 40.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-1586?
CVE-2026-1586 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-1586?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-1586, 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.

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