Numeric Truncation Error Affecting github.com/eclipse/paho.mqtt.golang/packets package, versions <1.5.1
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMECLIPSEPAHOMQTTGOLANGPACKETS-14171916
- published3 Dec 2025
- disclosed2 Dec 2025
- creditPaul Gerste
Introduced: 2 Dec 2025
NewCVE-2025-10543 (opens in a new tab)How to fix?
Upgrade github.com/eclipse/paho.mqtt.golang/packets to version 1.5.1 or higher.
Overview
Affected versions of this package are vulnerable to Numeric Truncation Error due to improper conversion of string length from an int64/int32 to an int16 without checks for overflows. values in the process handling UTF-8 encoded data. An attacker can cause packet corruption or unintended data leakage between fields by submitting specially crafted input strings exceeding 65535 bytes.