CVE-2012-5958

HIGHCVSS v2 · 10.010.0—
EchelonGraph scoreLOW confidence

This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 10.0 — v2 rates that HIGH (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:N/C:C/I:C/A:C. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 82.8% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.

Sources: epss, nvd_v2
Weaponized
10.0EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 83%
  • Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 83%CVSS v2: 10.0Exploit: Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

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

Stack-based buffer overflow in the unique_service_name function in ssdp/ssdp_server.c in the SSDP parser in the portable SDK for UPnP Devices (aka libupnp, formerly the Intel SDK for UPnP devices) before 1.6.18 allows remote attackers to execute arbitrary code via a UDP packet with a crafted string that is not properly handled after a certain pointer subtraction.

CVSS v2.0 (legacy)
10.0HIGHNVD never assigned a CVSS v3 rating to this CVE
EG Score
10.0(low)
EG Risk
83(Track)
EG Risk 83/100SSVC: 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
Severity100% × 45%
Exploitation83% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
83%
EPSS %ILE
100%
KEV
Not listed

Published

January 31, 2013

Last Modified

April 29, 2026

References (36)

Affected Packages

(2 across 1 ecosystem)
Debian:6.0(2)
PackageVulnerable rangeFixed inDependents
libupnp1:1.6.6-51:1.6.6-5+squeeze1—
libupnp41.8.0~svn20100507-11.8.0~svn20100507-1+squeeze1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 4× in last 7d / 8× 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. 2026-08-21 23:44 UTCEPSS rescore
  2. 2026-08-19 16:59 UTCEPSS rescore
  3. 2026-08-18 13:42 UTCEPSS rescore
  4. 2026-08-16 02:09 UTCEPSS rescore
  5. 2026-08-12 13:45 UTCEPSS rescore
  6. 2026-08-06 13:42 UTCEPSS rescore
  7. 2026-08-04 15:04 UTCEPSS rescore
  8. 2026-07-26 13:46 UTCEG score recompute▲ 10.00
  9. 2026-07-23 01:08 UTCEG score recompute▼ 8.60
  10. 2026-07-23 00:12 UTCEG score recompute▲ 8.60
  11. 2026-07-22 21:50 UTCEG score recompute▼ 9.00
  12. 2026-07-22 14:04 UTCEPSS rescore
  13. 2026-07-22 14:04 UTCEPSS rescore
  14. 2026-07-20 17:03 UTCEPSS rescore
  15. 2026-07-20 17:03 UTCEPSS rescore
  16. 2026-07-15 16:54 UTCEPSS rescore
  17. 2026-07-15 16:54 UTCEPSS rescore
  18. 2026-07-15 01:56 UTCEPSS rescore
  19. 2026-07-09 19:05 UTCEPSS rescore
  20. 2026-07-05 02:26 UTCEPSS rescore
  21. 2026-07-01 15:02 UTCEPSS rescore
  22. 2026-06-25 13:46 UTCEPSS rescore
  23. 2026-06-23 21:30 UTCEPSS rescore
  24. 2026-06-21 14:53 UTCEPSS rescore
  25. 2026-06-21 01:57 UTCEPSS rescore
Show 34 more
  1. 2026-06-21 01:56 UTCEPSS rescore
  2. 2026-06-17 17:49 UTCEPSS rescore
  3. 2026-06-17 17:49 UTCEPSS rescore
  4. 2026-06-15 17:44 UTCEPSS rescore
  5. 2026-06-14 23:14 UTCEPSS rescore
  6. 2026-06-12 23:08 UTCEPSS rescore
  7. 2026-06-11 13:56 UTCEPSS rescore
  8. 2026-06-10 13:18 UTCEPSS rescore
  9. 2026-06-08 14:14 UTCEPSS rescore
  10. 2026-06-07 15:22 UTCEPSS rescore
  11. 2026-06-05 22:44 UTCEPSS rescore
  12. 2026-06-05 22:44 UTCEPSS rescore
  13. 2026-06-05 06:08 UTCEPSS rescore
  14. 2026-06-05 06:08 UTCEPSS rescore
  15. 2026-06-01 13:49 UTCEPSS rescore
  16. 2026-06-01 13:49 UTCEPSS rescore
  17. 2026-05-29 13:41 UTCEPSS rescore
  18. 2026-05-29 13:41 UTCEPSS rescore
  19. 2026-05-29 01:07 UTCEG score recompute
  20. 2026-05-29 01:07 UTCGHSA enrichment
  21. 2026-05-28 13:42 UTCEPSS rescore
  22. 2026-05-28 13:42 UTCEPSS rescore
  23. 2026-05-28 13:42 UTCEPSS rescore
  24. 2026-05-26 07:16 UTCEPSS rescore
  25. 2026-05-26 07:16 UTCEPSS rescore
  26. 2026-05-24 16:43 UTCEPSS rescore
  27. 2026-05-22 21:15 UTCEPSS rescore
  28. 2026-05-22 21:15 UTCEPSS rescore
  29. 2026-05-22 21:15 UTCEPSS rescore
  30. 2026-05-21 22:39 UTCEPSS rescore
  31. 2026-05-20 22:37 UTCEPSS rescore
  32. 2026-05-20 22:37 UTCEPSS rescore
  33. 2026-05-18 21:29 UTCEPSS rescore
  34. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(4 references)

Working exploit code is in the public domain (2 Metasploit modules) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-49119
    First seen Nov 27, 2020

    libupnp 1.6.18 - Stack-based buffer overflow (DoS)

    Open source ↗
  • Exploit-DBEDB-24455✓ verified
    First seen Feb 5, 2013

    Portable UPnP SDK - 'unique_service_name()' Remote Code Execution (Metasploit)

    Open source ↗
  • Metasploitexploit/multi/upnp/libupnp_ssdp_overflow✓ verified
    First seen Jan 29, 2013

    Portable UPnP SDK unique_service_name() Remote Code Execution

    Open source ↗
  • Metasploitauxiliary/scanner/upnp/ssdp_msearch✓ verified
    First seen Jan 1, 2012

    UPnP SSDP M-SEARCH Information Discovery

    Open source ↗

Frequently asked(4)

What is CVE-2012-5958?
CVE-2012-5958 is a high vulnerability published on January 31, 2013. Stack-based buffer overflow in the uniqueservicename function in ssdp/ssdp_server.c in the SSDP parser in the portable SDK for UPnP Devices (aka libupnp, formerly the Intel SDK for UPnP devices) before 1.6.18 allows remote attackers to execute arbitrary code via a UDP packet with a crafted string…
When was CVE-2012-5958 disclosed?
CVE-2012-5958 was first published in the National Vulnerability Database on January 31, 2013, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-5958 actively exploited?
CVE-2012-5958 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 83% probability of exploitation in the next 30 days, which ranks it in the top 0.3% of all scored CVEs.
How do I remediate CVE-2012-5958?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-5958, 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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