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Fencer Intel
high 7.5

CVE-2022-28488 json

The function wav_format_write in libwav.c in libwav through 2017-04-20 has an Use of Uninitialized Variable vulnerability.

published 4y ago modified 4mo ago also EUVD-2022-32930

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits
0
none known

Summary

The function wav_format_write in libwav.c in libwav through 2017-04-20 has an Use of Uninitialized Variable vulnerability.

Patch / fix

Is CVE-2022-28488 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

1.23% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/marc-q/libwav/issues/29 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/tin-z/Stuff_and_POCs/blob/main/poc_libwav/POC referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-908 Use of Uninitialized Resource

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.