Vulnerability

CVE-2019-5435

Low· 3.7CVSS3.7EPSS0%

.rules3/5

curl/libcurl: Integer overflows in URL parser

libcurl contains two integer overflows in the `curl_url_set()` function that if triggered, can lead to a too small buffer allocation and a subsequent heap buffer overflow. The flaws only exist on 32-bit architectures and require excessive string input lengths.

Threat signal

37/100

Guarded

Severity

low

CVSS

3.7

EPSS

Active

CVSS

v3.0via NVDOpen in FIRST calculator →

3.7/ 10LOWCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack VectorNetworkExploitable remotely over the internet — no local access needed.
Attack ComplexityHighRequires conditions outside attacker's control (race, brute-force, configuration
Privileges RequiredNoneUnauthenticated — no credentials needed.
User InteractionNoneFully automated — no victim action needed.
ScopeUnchangedImpact contained to the vulnerable component.
Confidentiality ImpactNoneNo confidentiality impact.
Integrity ImpactNoneNo integrity impact.
Availability ImpactLowReduced performance / interruptions.

EPSS

Exploit prediction · 30-day horizonFIRST.org →

0.17%

probability of exploitation in next 30 days

p38

higher than 38% of all CVEs

3-day trend↑ 0pp

Low exploitation likelihood — defer if no other signals fire.

Vendor VEX

No VEX statements published for CVE-2019-5435. Vendors publish VEX (Vulnerability Exploitability eXchange) to assert per-product whether a CVE is actually exploitable in their distribution.

SSVCDefer

No exploitation, limited impact or prevalence

exploitation: none
automatable: no
impact: partial
mission: support

Lifecycle

2019-05-22Published
2019-07-18Vendor advisory · amazon-linuxALAS2-2019-1233 — ALAS2-2019-1233 (low): curl
2026-04-25Last modified2 sources

Entity graph

2 nodes · 1 edges · click to pivot

CVEActorVendor advisoryIOCNews

Vendor advisories

amazon-linuxALAS2-2019-1233ALAS2-2019-1233 (low): curl

References

No source-event history recorded yet. New revisions will appear here as ingestors re-fetch this CVE.