CVE-2025-29910Public exploitNetwork attack vector

Denial of service via unreleased counter buffer

Published Mar 17, 2025 · Updated Mar 18, 2025

Memory leak in NASA CryptoLib 1.3.3 and earlier allows remote attackers to exhaust memory via crafted telecommand frames. The crypto_handle_incrementing_nontransmitted_counter function allocates temp_counter but guards free(temp_counter) with if (!temp_counter), leaving every successful allocation unreleased. Repeated processing in long-running or high-throughput deployments degrades performance and can interrupt the service through memory exhaustion.

CVSS severity7.5
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in NASA CryptoLib 1.3.3 and earlier allows remote attackers to exhaust memory via crafted telecommand frames. The crypto_handle_incrementing_nontransmitted_counter function allocates temp_counter but guards free(temp_counter) with if (!temp_counter), leaving every successful allocation unreleased. Repeated processing in long-running or high-throughput deployments degrades performance and can interrupt the service through memory exhaustion.

The record

CVE
CVE-2025-29910
Published
Mar 17, 2025
Updated
Mar 18, 2025
Vendor
NASA
Product
CryptoLib
Classifications
CWE-401, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 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?

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

  1. Affected versionversion=<= 1.3.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

NASA · CryptoLibversion=<= 1.3.3

Published CVSS scores

7.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.5GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
7.5NIST NVDCVSS: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 exploitPublished

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime
T1499.004Application or System Exploitation

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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