CVE-2010-2621

NONECVSS 0.0Trending — 3 sources updated this weekWeaponized

0.0

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)
EPSS: 93.9%
KEV: Not listed

Published

July 2, 2010

Last Modified

April 29, 2026

References (18)

cve@mitrehttp://aluigi.org/adv/qtsslame-adv.txt
cve@mitrehttp://aluigi.org/poc/qtsslame.zip
cve@mitrehttp://osvdb.org/65860
cve@mitrehttp://qt.gitorious.org/qt/qt/commit/c25c7c9bdfade6b906f37ac8bad44f6f0de57597
cve@mitrehttp://secunia.com/advisories/40389
cve@mitrehttp://secunia.com/advisories/46410
cve@mitrehttp://www.securityfocus.com/bid/41250
cve@mitrehttp://www.vupen.com/english/advisories/2010/1657
cve@mitrehttps://hermes.opensuse.org/messages/12056605
af854a3a-2127-422b-91ae-364da2661108http://aluigi.org/adv/qtsslame-adv.txt
af854a3a-2127-422b-91ae-364da2661108http://aluigi.org/poc/qtsslame.zip
af854a3a-2127-422b-91ae-364da2661108http://osvdb.org/65860
af854a3a-2127-422b-91ae-364da2661108http://qt.gitorious.org/qt/qt/commit/c25c7c9bdfade6b906f37ac8bad44f6f0de57597
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/40389
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/46410

Weakness Classification(1)

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

CWE-20Improper Input Validation

Data Freshness Timeline

(refreshed 15× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 06:07 UTCepss_batch
2026-06-05 06:07 UTCepss_batch
2026-06-04 13:09 UTCepss_batch
2026-06-04 13:09 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:13 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-29 11:02 UTCEG score recompute
2026-05-29 11:02 UTCGHSA enrichment
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:41 UTCepss_batch

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 ↗

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 93.9% 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.

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CVE-2010-2621

📅 Published

🔄 Last Modified

🔗 References (18)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2010-2621?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (18)

Frequently asked(4)

Related CVEs(same CWE)