CVE-2023-31441: In NATO Communications and Information Agency anet (aka Advisor Network) through 3.3.0, an attacker can provid

Q: How do I fix CVE-2023-31441?

advisor network: upgrade to newer than 3.3.0. Exact commands for each OS are on this page.

Q: Is CVE-2023-31441 being exploited?

CVE-2023-31441 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-31441 affect?

CVE-2023-31441 affects advisor network. Severity is medium (CVSS 5.5). In NATO Communications and Information Agency anet (aka Advisor Network) through 3.3.0, an attacker can provide a crafted JSON file to sanitizeJson and cause an exception. This is related to the U+FFFD Unicode replacement character. A for l

Q: How urgent is CVE-2023-31441?

Priority 30/100. Public exploit reference

Routine

MEDIUM 5.5UPGRADE

CVE-2023-31441 is a medium-severity flaw (CVSS 5.5) affecting advisor network. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In NATO Communications and Information Agency anet (aka Advisor Network) through 3.3.0, an attacker can provide a crafted JSON file to sanitizeJson and cause an exception. This is related to the U+FFFD Unicode replacement character. A for loop does not consider that a data structure is being modified during loop execution.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 78%)
CISA exploited list	No
Weakness	CWE-476
Published	2023-07-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ncia

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-07-18 15:15 UTCPublished CVE record published
2026-06-17 05:56 UTCUpdated Record last modified

ncia advisor network UPGRADE

Affected: <= 3.3.0

Fixed in: newer than 3.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy advisor-network || rpm -q advisor-network || advisor-network --version

2. UPGRADE to newer than 3.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade advisor-network

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade advisor-network

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-31441?

advisor network: upgrade to newer than 3.3.0. Exact commands for each OS are on this page.

Is CVE-2023-31441 being exploited?

CVE-2023-31441 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-31441 affect?

CVE-2023-31441 affects advisor network. Severity is medium (CVSS 5.5). In NATO Communications and Information Agency anet (aka Advisor Network) through 3.3.0, an attacker can provide a crafted JSON file to sanitizeJson and cause an exception. This is related to the U+FFFD Unicode replacement character. A for l

How urgent is CVE-2023-31441?

Priority 30/100. Public exploit reference

Related CVEs

CVE-2024-38447 HIGH 8.1 DOWNGRADE NATO NCI ANET 3.4.1 allows Insecure Direct Object Reference via a modified ID field in a request for a private
CVE-2024-38446 MEDIUM 6.5 DOWNGRADE NATO NCI ANET 3.4.1 mishandles report ownership

References

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