CVE-2024-31837Public exploit

Local memory disclosure via uncontrolled format string

Published Apr 30, 2024 · Updated Nov 3, 2025

Format-string injection in DMitry 1.3a allows local users to disclose process memory or crash the tool through a crafted host argument. Several paths in iwhois.c, mailsearch.c, and subsearch.c pass attacker-influenced buffers directly to print_line as format strings instead of using a fixed %s format. Execution requires a local user to run the command with a malicious host value; published reproducers show pointer disclosure and a process crash.

CVSS severity8.4
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Format-string injection in DMitry 1.3a allows local users to disclose process memory or crash the tool through a crafted host argument. Several paths in iwhois.c, mailsearch.c, and subsearch.c pass attacker-influenced buffers directly to print_line as format strings instead of using a fixed %s format. Execution requires a local user to run the command with a malicious host value; published reproducers show pointer disclosure and a process crash.

The record

CVE
CVE-2024-31837
Published
Apr 30, 2024
Updated
Nov 3, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-134
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.4CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

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No observations available

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

Weakness, pattern, technique

CWE-134Use of Externally-Controlled Format String

Public exploit references

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

Technologies

Your stack

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Your stack

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