CVE-2024-1765

highpriority · track · 30EPSS 0.011 · 66 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.11% (66th) EPSS

CVSS 7.5 · high

Is it mine?

9 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

Cloudflare Quiche (through version 0.19.1/0.20.0) was affected by an unlimited resource allocation vulnerability causing rapid increase of memory usage of the system running quiche server or client. A remote attacker could take advantage of this vulnerability by repeatedly sending an unlimited number of 1-RTT CRYPTO frames after previously completing the QUIC handshake. Exploitation was possible for the duration of the connection which could be extended by the attacker. quiche 0.19.2 and 0.20.1 are the earliest versions containing the fix for this issue.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.15.9mediumAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · cna@cloudflare.comexploitability 2.2 · impact 3.6

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-770USprimaryCWE-400USCWE-400USCWE-400US

affected products (9)

Products and version ranges known to be affected.

Cloudflare quicheall versionsenisa_euvdEU
Cloudflare quiche≤ 0.15.0 ≤<0.19.1enisa_euvdEU
Cloudflare quiche0.20.0 → <0.20.1enisa_euvdEU
Cloudflare, Inc Quiche≤ 0.19.2fstec_bduRU
Cloudflare, Inc Quiche≤ 0.20.0fstec_bduRU
cloudflare quiche< 0.19.2nvdUScpe:2.3:a:cloudflare:quiche:*:*:*:*:*:*:*:*
cloudflare quiche= 0.20.0nvdUScpe:2.3:a:cloudflare:quiche:*:*:*:*:*:*:*:*
crates.io quiche< 0.19.2osvUSpkg:cargo/quiche
crates.io quiche0.20.0 → 0.20.1osvUSpkg:cargo/quiche

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-78wx-jg4j-5j6gquiche vulnerable to unlimited resource allocation by QUIC CRYPTO frames flooding2024-03-13ghsa · osvUS
### Impact Cloudflare Quiche (through version 0.19.1/0.20.0) was affected by an unlimited resource allocation vulnerability causing rapid increase of memory usage of the system running quiche server or client. A remote attacker could take advantage of this vulnerability by repeatedly sending an unlimited number of 1-RTT CRYPTO frames after previously completing the QUIC handshake. Exploitation was possible for the duration of the connection which could be extended by the attacker. ### Patches Quiche 0.19.2 and 0.20.1 are the earliest versions containing the fix for this issue.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd osv NVD CVE.org MITRE

published 2024-03-12modified 2026-06-17

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+3264 more

references (5)

External citations — patches, advisories, analysis.

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