CVE-2020-19909

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Summary

CVECVE-2020-19909
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-08-22 19:16:06 UTC
Updated2026-07-26 01:16:24 UTC
DescriptionInteger overflow vulnerability in tool_operate.c in curl 7.65.2 via a large value as the retry delay. NOTE: many parties report that this has no direct security impact on the curl user; however, it may (in theory) cause a denial of service to associated systems or networks if, for example, --retry-delay is misinterpreted as a value much smaller than what was intended. This is not especially plausible because the overflow only happens if the user was trying to specify that curl should wait weeks (or longer) before trying to recover from a transient error.

Risk And Classification

Primary CVSS: v3.1 3.3 LOW from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

EPSS: 0.004200000 probability, percentile 0.345090000 (date 2026-07-29)

Problem Types: CWE-190 | n/a

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Haxx Curl 7.65.2 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
www.openwall.com/lists/oss-security/2026/07/25/5 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
curl: cap the maximum allowed values for retry time arguments by bagder · Pull Request #4166 · curl/curl · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch
CVE-2020-19909 is everything that is wrong with CVEs | daniel.haxx.se af854a3a-2127-422b-91ae-364da2661108 daniel.haxx.se Issue Tracking
www.openwall.com/lists/oss-security/2026/07/23/2 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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