CVE-2024-37794Public exploitNetwork attack vector

Solver crash via unchecked zero denominator

Published Jun 17, 2024 · Updated Aug 2, 2024

Improper input validation in cvc5 1.1.3 allows attackers to crash the solver by supplying a crafted SMT2 input file. The SMT2 term parser passes the denominator-zero rational literal 5/0 through TermManager::mkReal into GMP canonicalization, which invokes a fatal divide-by-zero path instead of returning a parsing error. Processing the malicious file is sufficient to abort the cvc5 process; no confidentiality or integrity impact is reported.

CVSS severity7.5
High
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper input validation in cvc5 1.1.3 allows attackers to crash the solver by supplying a crafted SMT2 input file. The SMT2 term parser passes the denominator-zero rational literal 5/0 through TermManager::mkReal into GMP canonicalization, which invokes a fatal divide-by-zero path instead of returning a parsing error. Processing the malicious file is sufficient to abort the cvc5 process; no confidentiality or integrity impact is reported.

The record

CVE
CVE-2024-37794
Published
Jun 17, 2024
Updated
Aug 2, 2024
Vendor
cvc5
Product
cvc5
Classifications
CWE-20, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.1.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

cvc5 · cvc5version=1.1.3

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo