CVE-2023-46847

HIGHNVD 7.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because EPSS predicts 86% probability of exploitation within the next 30 days (top 0.3% of all CVEs). NVD baseline CVSS 7.5 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, nvd
Trending — 3 sources updated this weekElevated
7.5
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 86%
CISA-KEV: Not listedEPSS: 86%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.

CVSS v3
7.5
EG Score
9.0(high)
EG Risk
79(Track)
EG Risk 79/100SSVC: 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
Severity90% × 45%
Exploitation86% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
99.7%
KEV
Not listed

Published

November 3, 2023

Last Modified

June 17, 2026

References (36)

Patch Availability(16)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntusquidclient (6.1-2ubuntu1.1) @ mantic2026-05-24ubuntu
ubuntusquid3 (3.5.12-1ubuntu7.16+esm2) @ xenial2026-05-24ubuntu
redhatsquid-7:3.5.20-12.el7_6.22023-11-29redhat
redhatsquid-7:3.5.20-13.el7_7.12023-11-29redhat
redhatsquid:4-8090020231030224841.a75119d52023-11-14redhat
redhatsquid-7:3.1.23-24.el6_10.12023-11-13redhat
redhatsquid34-7:3.4.14-15.el6_10.12023-11-13redhat
redhatsquid:4-8010020231101141358.c27ad7f82023-11-08redhat
redhatsquid:4-8020020231101135052.4cda2c842023-11-08redhat
redhatsquid-7:3.5.20-17.el7_9.92023-11-08redhat
redhatsquid:4-8040020231101101624.522a0ee42023-11-08redhat
redhatsquid:4-8060020231031165747.ad008a3a2023-11-08redhat
redhatsquid-7:5.5-6.el9_3.12023-11-07redhat
redhatsquid-7:5.5-5.el9_2.12023-11-02redhat
redhatsquid:4-8080020231030214932.63b345852023-11-02redhat
redhatsquid-7:5.2-1.el9_0.32023-11-02redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

All Vendor Advisories

(17)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 7× in last 7d / 20× 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 14:16 UTCEPSS rescore
  2. 2026-07-24 14:16 UTCEPSS rescore
  3. 2026-07-23 02:27 UTCEG score recompute
  4. 2026-07-22 21:20 UTCEG score recompute▲ 0.40
  5. 2026-07-22 21:20 UTCVendor advisory
  6. 2026-07-22 14:06 UTCEPSS rescore
  7. 2026-07-20 17:06 UTCEPSS rescore
  8. 2026-07-18 10:03 UTCEPSS rescore
  9. 2026-07-18 10:03 UTCEPSS rescore
  10. 2026-07-15 16:56 UTCEPSS rescore
  11. 2026-07-15 16:56 UTCEPSS rescore
  12. 2026-07-15 04:49 UTCOSV refresh
  13. 2026-07-12 05:45 UTCEPSS rescore
  14. 2026-07-09 19:08 UTCEPSS rescore
  15. 2026-07-08 15:13 UTCEPSS rescore
  16. 2026-07-07 13:44 UTCEPSS rescore
  17. 2026-07-07 13:44 UTCEPSS rescore
  18. 2026-07-01 15:05 UTCEPSS rescore
  19. 2026-06-27 05:23 UTCOSV refresh
  20. 2026-06-27 03:07 UTCEPSS rescore
  21. 2026-06-24 14:04 UTCEPSS rescore
  22. 2026-06-24 14:04 UTCEPSS rescore
  23. 2026-06-24 06:28 UTCNVD updateCVSS v3 → 7.5
  24. 2026-06-23 21:31 UTCEPSS rescore
  25. 2026-06-23 21:31 UTCEPSS rescore
Show 40 more
  1. 2026-06-21 01:58 UTCEPSS rescore
  2. 2026-06-21 01:58 UTCEPSS rescore
  3. 2026-06-18 17:51 UTCEPSS rescore
  4. 2026-06-17 17:51 UTCEPSS rescore
  5. 2026-06-15 17:47 UTCEPSS rescore
  6. 2026-06-14 23:16 UTCEPSS rescore
  7. 2026-06-13 22:59 UTCEPSS rescore
  8. 2026-06-13 22:59 UTCEPSS rescore
  9. 2026-06-12 23:11 UTCEPSS rescore
  10. 2026-06-12 23:10 UTCEPSS rescore
  11. 2026-06-11 13:59 UTCEPSS rescore
  12. 2026-06-10 22:17 UTCEPSS rescore
  13. 2026-06-10 13:21 UTCEPSS rescore
  14. 2026-06-09 16:17 UTCOSV refresh
  15. 2026-06-07 15:24 UTCEPSS rescore
  16. 2026-06-07 15:23 UTCEPSS rescore
  17. 2026-06-06 13:46 UTCEPSS rescore
  18. 2026-06-06 13:46 UTCEPSS rescore
  19. 2026-06-05 22:46 UTCEPSS rescore
  20. 2026-06-05 22:46 UTCEPSS rescore
  21. 2026-06-05 06:09 UTCEPSS rescore
  22. 2026-06-05 06:09 UTCEPSS rescore
  23. 2026-06-05 06:09 UTCEPSS rescore
  24. 2026-06-04 13:11 UTCEPSS rescore
  25. 2026-06-04 13:11 UTCEPSS rescore
  26. 2026-06-04 13:11 UTCEPSS rescore
  27. 2026-06-02 20:12 UTCEPSS rescore
  28. 2026-06-02 20:12 UTCEPSS rescore
  29. 2026-05-31 22:30 UTCEPSS rescore
  30. 2026-05-31 22:30 UTCEPSS rescore
  31. 2026-05-31 00:15 UTCEPSS rescore
  32. 2026-05-31 00:15 UTCEPSS rescore
  33. 2026-05-29 13:43 UTCEPSS rescore
  34. 2026-05-28 13:44 UTCEPSS rescore
  35. 2026-05-27 13:39 UTCEPSS rescore
  36. 2026-05-27 13:39 UTCEPSS rescore
  37. 2026-05-26 13:43 UTCEPSS rescore
  38. 2026-05-26 13:43 UTCEPSS rescore
  39. 2026-05-24 14:31 UTCEG score recompute
  40. 2026-05-24 14:31 UTCVendor advisory

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2023-46847?
CVE-2023-46847 is a high vulnerability published on November 3, 2023. Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.
When was CVE-2023-46847 disclosed?
CVE-2023-46847 was first published in the National Vulnerability Database on November 3, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-46847 actively exploited?
CVE-2023-46847 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-46847?
CVE-2023-46847 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
How do I remediate CVE-2023-46847?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-46847, 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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