CVE-2022-31291Network attack vector

Remote denial of service via double free

Published Jun 16, 2022 · Updated Aug 3, 2024

Double-free vulnerability in dlt-daemon 2.18.8 allows remote attackers to interrupt the service via crafted TCP packets. The dlt_config_file_parser.c parser mishandles packet-controlled memory and releases the same allocation twice, corrupting heap state. No privileges or user interaction are required; a reachable DLT TCP listener can be crashed, causing a service outage without evidence of data disclosure or modification.

CVSS severity7.5
High
EPSS probability1.04%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double-free vulnerability in dlt-daemon 2.18.8 allows remote attackers to interrupt the service via crafted TCP packets. The dlt_config_file_parser.c parser mishandles packet-controlled memory and releases the same allocation twice, corrupting heap state. No privileges or user interaction are required; a reachable DLT TCP listener can be crashed, causing a service outage without evidence of data disclosure or modification.

The record

CVE
CVE-2022-31291
Published
Jun 16, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-415, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 16, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.0NVDAV:N/AC:L/Au:N/C:N/I:N/A:P
7.5NVDCVSS: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.

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-415Double Free
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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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