Improper Validation of Specified Quantity in Input Affecting glibc package, versions [0,]
Threat Intelligence
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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- published6 May 2026
- disclosed28 Apr 2026
- creditUnknown
Introduced: 28 Apr 2026
CVE-2026-6238 (opens in a new tab)How to fix?
There is no fixed version for glibc.
Overview
Affected versions of this package are vulnerable to Improper Validation of Specified Quantity in Input via the ns_printrrf, ns_printrr, and fp_nquery functions when processing DNS responses containing specific record types such as LOC, CERT, TKEY, or TSIG. An attacker can cause an application to crash or trigger uninitialized memory reads by sending a specially crafted DNS response. This is only exploitable if the affected debugging functions are invoked by the application.