ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2020-19909

Integer overflow vulnerability in tool_operate.c in curl 7.65.2 via a large value as the retry delay.

Published Aug 22, 2023 · catalog updated Oct 14, 2026 · Integer overflow vulnerability in

Check if you run it

No confirmed exploitation is on record for CVE-2020-19909. EPSS is 0.37%. Act only if a listed version of Integer overflow vulnerability in is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Integer overflow vulnerability in).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Low3.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.37%
Remediation
Advisory link
Affected products
cpe haxx/curl

Integer 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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe haxx/curl7.65.2

How to fix CVE-2020-19909

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2020-19909. EPSS is 0.37%. Act only if a listed version of Integer overflow vulnerability in is installed.

Which versions are affected?

Compare what you have installed with 7.65.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-190: Integer Overflow. EPSS 0.37%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 22, 2023 · NIST NVD

    Detected

    Integer 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 plausi

  2. Oct 14, 2026 · NIST NVD

    Updated

    Integer 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 plausi

Sources

  • CVE.orgVulnerability recordCVE-2020-19909

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-19909

    30-day exploitation probability 0.4%

    first.org
  • NIST NVDVulnerability recordCVE-2020-19909

    Integer 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, fo

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 16, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.