CVE-2010-2621

NONECVSS 0.0Trending — 3 sources updated this weekWeaponized
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 11%CVSS: —Exploit: NoneExposed: 0

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

The QSslSocketBackendPrivate::transmit function in src_network_ssl_qsslsocket_openssl.cpp in Qt 4.6.3 and earlier allows remote attackers to cause a denial of service (infinite loop) via a malformed request.

CVSS v3
—
EG Score
0.0(none)
EG Risk
0
EG Risk 0/100

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. It is distinct from the 0–10 EG Score, which measures severity.

EPSS
95.3%
KEV
Not listed

Published

July 2, 2010

Last Modified

April 29, 2026

References (18)

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
debian:10qt4-x11 @ 4:4.6.3-2—osv

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.

Data Freshness Timeline

(refreshed 13× in last 7d / 33× 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. 2026-07-23 14:14 UTCEPSS rescore
  2. 2026-07-23 05:49 UTCOSV refresh
  3. 2026-07-23 01:02 UTCEG score recompute
  4. 2026-07-23 00:39 UTCEG score recompute
  5. 2026-07-23 00:06 UTCEG score recompute
  6. 2026-07-22 21:45 UTCEG score recompute
  7. 2026-07-22 14:03 UTCEPSS rescore
  8. 2026-07-22 14:03 UTCEPSS rescore
  9. 2026-07-21 15:20 UTCEPSS rescore
  10. 2026-07-20 17:03 UTCEPSS rescore
  11. 2026-07-19 02:25 UTCEPSS rescore
  12. 2026-07-18 10:00 UTCEPSS rescore
  13. 2026-07-16 16:58 UTCEPSS rescore
  14. 2026-07-15 16:54 UTCEPSS rescore
  15. 2026-07-15 16:54 UTCEPSS rescore
  16. 2026-07-15 01:55 UTCEPSS rescore
  17. 2026-07-13 22:25 UTCEPSS rescore
  18. 2026-07-11 08:22 UTCEPSS rescore
  19. 2026-07-08 15:10 UTCEPSS rescore
  20. 2026-07-08 15:10 UTCEPSS rescore
  21. 2026-07-06 00:59 UTCOSV refresh
  22. 2026-07-05 02:26 UTCEPSS rescore
  23. 2026-07-02 14:01 UTCEPSS rescore
  24. 2026-07-01 15:02 UTCEPSS rescore
  25. 2026-06-30 23:19 UTCEPSS rescore
Show 67 more
  1. 2026-06-28 04:52 UTCEPSS rescore
  2. 2026-06-28 04:52 UTCEPSS rescore
  3. 2026-06-27 03:05 UTCEPSS rescore
  4. 2026-06-25 13:46 UTCEPSS rescore
  5. 2026-06-24 14:02 UTCEPSS rescore
  6. 2026-06-24 14:02 UTCEPSS rescore
  7. 2026-06-23 21:30 UTCEPSS rescore
  8. 2026-06-23 21:29 UTCEPSS rescore
  9. 2026-06-22 14:22 UTCEPSS rescore
  10. 2026-06-22 14:22 UTCEPSS rescore
  11. 2026-06-21 14:53 UTCEPSS rescore
  12. 2026-06-19 19:22 UTCEPSS rescore
  13. 2026-06-19 19:22 UTCEPSS rescore
  14. 2026-06-18 17:49 UTCEPSS rescore
  15. 2026-06-18 17:49 UTCEPSS rescore
  16. 2026-06-17 17:49 UTCEPSS rescore
  17. 2026-06-17 17:49 UTCEPSS rescore
  18. 2026-06-17 12:05 UTCOSV refresh
  19. 2026-06-16 17:49 UTCEPSS rescore
  20. 2026-06-15 17:44 UTCEPSS rescore
  21. 2026-06-14 23:14 UTCEPSS rescore
  22. 2026-06-13 22:57 UTCEPSS rescore
  23. 2026-06-13 22:57 UTCEPSS rescore
  24. 2026-06-13 22:57 UTCEPSS rescore
  25. 2026-06-12 23:08 UTCEPSS rescore
  26. 2026-06-12 23:08 UTCEPSS rescore
  27. 2026-06-11 13:56 UTCEPSS rescore
  28. 2026-06-10 22:14 UTCEPSS rescore
  29. 2026-06-10 13:17 UTCEPSS rescore
  30. 2026-06-08 14:13 UTCEPSS rescore
  31. 2026-06-05 22:44 UTCEPSS rescore
  32. 2026-06-05 22:44 UTCEPSS rescore
  33. 2026-06-05 06:07 UTCEPSS rescore
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  35. 2026-06-04 13:09 UTCEPSS rescore
  36. 2026-06-04 13:09 UTCEPSS rescore
  37. 2026-06-02 20:10 UTCEPSS rescore
  38. 2026-06-02 20:10 UTCEPSS rescore
  39. 2026-06-01 13:49 UTCEPSS rescore
  40. 2026-06-01 13:49 UTCEPSS rescore
  41. 2026-05-31 22:28 UTCEPSS rescore
  42. 2026-05-31 22:28 UTCEPSS rescore
  43. 2026-05-31 00:14 UTCEPSS rescore
  44. 2026-05-31 00:13 UTCEPSS rescore
  45. 2026-05-29 13:40 UTCEPSS rescore
  46. 2026-05-29 11:02 UTCEG score recompute
  47. 2026-05-29 11:02 UTCGHSA enrichment
  48. 2026-05-28 13:42 UTCEPSS rescore
  49. 2026-05-28 13:42 UTCEPSS rescore
  50. 2026-05-27 13:38 UTCEPSS rescore
  51. 2026-05-27 13:38 UTCEPSS rescore
  52. 2026-05-26 13:41 UTCEPSS rescore
  53. 2026-05-26 13:41 UTCEPSS rescore
  54. 2026-05-26 07:16 UTCEPSS rescore
  55. 2026-05-26 07:16 UTCEPSS rescore
  56. 2026-05-24 16:43 UTCEPSS rescore
  57. 2026-05-22 21:15 UTCEPSS rescore
  58. 2026-05-22 21:15 UTCEPSS rescore
  59. 2026-05-22 21:15 UTCEPSS rescore
  60. 2026-05-21 22:39 UTCEPSS rescore
  61. 2026-05-20 22:37 UTCEPSS rescore
  62. 2026-05-20 22:37 UTCEPSS rescore
  63. 2026-05-20 22:37 UTCEPSS rescore
  64. 2026-05-20 11:21 UTCEPSS rescore
  65. 2026-05-20 11:21 UTCEPSS rescore
  66. 2026-05-18 21:29 UTCEPSS rescore
  67. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

  • Exploit-DBEDB-14268✓ verified
    First seen Jul 8, 2010

    Qt 4.6.3 - 'QSslSocketBackendPrivate::transmit()' Denial of Service

    Open source ↗

Related CVEs(same product + same CWE)

Frequently asked(4)

What is CVE-2010-2621?
CVE-2010-2621 is a none vulnerability published on July 2, 2010. The QSslSocketBackendPrivate::transmit function in srcnetworksslqsslsocketopenssl.cpp in Qt 4.6.3 and earlier allows remote attackers to cause a denial of service (infinite loop) via a malformed request.
When was CVE-2010-2621 disclosed?
CVE-2010-2621 was first published in the National Vulnerability Database on July 2, 2010, 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-2010-2621 actively exploited?
CVE-2010-2621 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 95.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2010-2621?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2010-2621, 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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