CVE-2013-4983

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 90.1% 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
Trending — 3 sources updated this weekWeaponized
10.0EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 90%
  • Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 90%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.

The get_referers function in /opt/ws/bin/sblistpack in Sophos Web Appliance before 3.7.9.1 and 3.8 before 3.8.1.1 allows remote attackers to execute arbitrary commands via shell metacharacters in the domain parameter to end-user/index.php.

CVSS v2.0 (legacy)
10.0HIGHNVD never assigned a CVSS v3 rating to this CVE
EG Score
10.0(low)
EG Risk
86(Track)
EG Risk 86/100SSVC: 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%
Exploitation90% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
90%
EPSS %ILE
100%
KEV
Not listed

Published

September 10, 2013

Last Modified

April 29, 2026

References (4)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 14× 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. 2026-07-26 13:48 UTCEG score recompute▲ 10.00
  2. 2026-07-23 01:16 UTCGHSA enrichment
  3. 2026-07-23 01:14 UTCGHSA enrichment
  4. 2026-07-23 01:12 UTCGHSA enrichment
  5. 2026-07-23 01:10 UTCEG score recompute▼ 9.00
  6. 2026-07-23 00:14 UTCEG score recompute
  7. 2026-07-22 21:52 UTCEG score recompute
  8. 2026-07-22 14:04 UTCEPSS rescore
  9. 2026-07-15 16:54 UTCEPSS rescore
  10. 2026-07-15 16:54 UTCEPSS rescore
  11. 2026-07-07 13:41 UTCEPSS rescore
  12. 2026-07-06 02:20 UTCEPSS rescore
  13. 2026-07-06 02:19 UTCEPSS rescore
  14. 2026-07-05 02:26 UTCEPSS rescore
  15. 2026-06-27 03:05 UTCEPSS rescore
  16. 2026-06-24 14:02 UTCEPSS rescore
  17. 2026-06-24 14:02 UTCEPSS rescore
  18. 2026-06-23 21:30 UTCEPSS rescore
  19. 2026-06-23 21:30 UTCEPSS rescore
  20. 2026-06-16 17:49 UTCEPSS rescore
  21. 2026-06-16 17:49 UTCEPSS rescore
  22. 2026-06-16 17:49 UTCEPSS rescore
  23. 2026-06-15 17:44 UTCEPSS rescore
  24. 2026-06-12 23:08 UTCEPSS rescore
  25. 2026-06-11 13:56 UTCEPSS rescore
Show 30 more
  1. 2026-06-10 22:15 UTCEPSS rescore
  2. 2026-06-08 14:14 UTCEPSS rescore
  3. 2026-06-05 22:44 UTCEPSS rescore
  4. 2026-06-05 22:44 UTCEPSS rescore
  5. 2026-05-31 00:14 UTCEPSS rescore
  6. 2026-05-31 00:14 UTCEPSS rescore
  7. 2026-05-29 13:41 UTCEPSS rescore
  8. 2026-05-29 13:41 UTCEPSS rescore
  9. 2026-05-28 22:36 UTCEG score recompute
  10. 2026-05-28 22:35 UTCGHSA enrichment
  11. 2026-05-28 13:42 UTCEPSS rescore
  12. 2026-05-28 13:42 UTCEPSS rescore
  13. 2026-05-28 13:42 UTCEPSS rescore
  14. 2026-05-27 13:38 UTCEPSS rescore
  15. 2026-05-27 13:38 UTCEPSS rescore
  16. 2026-05-26 13:41 UTCEPSS rescore
  17. 2026-05-26 13:41 UTCEPSS rescore
  18. 2026-05-26 07:16 UTCEPSS rescore
  19. 2026-05-26 07:16 UTCEPSS rescore
  20. 2026-05-24 16:43 UTCEPSS rescore
  21. 2026-05-22 21:15 UTCEPSS rescore
  22. 2026-05-22 21:15 UTCEPSS rescore
  23. 2026-05-22 21:15 UTCEPSS rescore
  24. 2026-05-21 22:39 UTCEPSS rescore
  25. 2026-05-20 22:37 UTCEPSS rescore
  26. 2026-05-20 22:37 UTCEPSS rescore
  27. 2026-05-20 11:21 UTCEPSS rescore
  28. 2026-05-20 11:21 UTCEPSS rescore
  29. 2026-05-18 21:29 UTCEPSS rescore
  30. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-28334✓ verified
    First seen Sep 17, 2013

    Sophos Web Protection Appliance - 'sblistpack' Arbitrary Command Execution (Metasploit)

    Open source ↗
  • Exploit-DBEDB-28175✓ verified
    First seen Sep 9, 2013

    Sophos Web Protection Appliance - Multiple Vulnerabilities

    Open source ↗
  • Metasploitexploit/linux/http/sophos_wpa_sblistpack_exec✓ verified
    First seen Sep 6, 2013

    Sophos Web Protection Appliance sblistpack Arbitrary Command Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2013-4983?
CVE-2013-4983 is a high vulnerability published on September 10, 2013. The get_referers function in /opt/ws/bin/sblistpack in Sophos Web Appliance before 3.7.9.1 and 3.8 before 3.8.1.1 allows remote attackers to execute arbitrary commands via shell metacharacters in the domain parameter to end-user/index.php.
When was CVE-2013-4983 disclosed?
CVE-2013-4983 was first published in the National Vulnerability Database on September 10, 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-2013-4983 actively exploited?
CVE-2013-4983 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 90% probability of exploitation in the next 30 days, which ranks it in the top 0.2% of all scored CVEs.
How do I remediate CVE-2013-4983?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2013-4983, 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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