How severe is CVE-2009-4835?

CVE-2009-4835 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2009-4835 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4835?

CVE-2009-4835 affects Mega-nerd Libsndfile. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-4835?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-4835 published?

CVE-2009-4835 was published on 2010-05-06 and last updated on 2026-06-16.

CVE-2009-4835

CVE-2009-4835 is a medium-severity vulnerability in Mega-nerd Libsndfile with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Mega-nerd Libsndfile
Published: 2010-05-06
Last modified: 2026-06-16

Description

The (1) htk_read_header, (2) alaw_init, (3) ulaw_init, (4) pcm_init, (5) float32_init, and (6) sds_read_header functions in libsndfile 1.0.20 allow context-dependent attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted audio file.

Frequently asked questions

What is CVE-2009-4835?: The (1) htk_read_header, (2) alaw_init, (3) ulaw_init, (4) pcm_init, (5) float32_init, and (6) sds_read_header functions in libsndfile 1.0.20 allow context-dependent attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted audio file.
How severe is CVE-2009-4835?: CVE-2009-4835 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2009-4835 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4835?: CVE-2009-4835 affects Mega-nerd Libsndfile. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-4835?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-4835 published?: CVE-2009-4835 was published on 2010-05-06 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:mega-nerd:libsndfile:1.0.20:*:*:*:*:*:*:*

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CVE-2007-4974 — High (CVSS 7.5): Heap-based buffer overflow in the flac_buffer_copy function in libsndfile 1.0.17 and earlier might allow remote…
CVE-2011-2696 — Medium (CVSS 6.8): Integer overflow in libsndfile before 1.0.25 allows remote attackers to cause a denial of service (application crash)…

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