How severe is CVE-2021-45943?

CVE-2021-45943 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-45943 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45943?

CVE-2021-45943 primarily affects Osgeo Gdal. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-45943?

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

When was CVE-2021-45943 published?

CVE-2021-45943 was published on 2022-01-01 and last updated on 2026-06-17.

CVE-2021-45943

CVE-2021-45943 is a medium-severity vulnerability in Osgeo Gdal with a CVSS 3.x base score of 5.5. 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Osgeo Gdal
Published: 2022-01-01
Last modified: 2026-06-17

Description

GDAL 3.3.0 through 3.4.0 has a heap-based buffer overflow in PCIDSK::CPCIDSKFile::ReadFromFile (called from PCIDSK::CPCIDSKSegment::ReadFromFile and PCIDSK::CPCIDSKBinarySegment::CPCIDSKBinarySegment).

Frequently asked questions

What is CVE-2021-45943?: GDAL 3.3.0 through 3.4.0 has a heap-based buffer overflow in PCIDSK::CPCIDSKFile::ReadFromFile (called from PCIDSK::CPCIDSKSegment::ReadFromFile and PCIDSK::CPCIDSKBinarySegment::CPCIDSKBinarySegment).
How severe is CVE-2021-45943?: CVE-2021-45943 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-45943 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45943?: CVE-2021-45943 primarily affects Osgeo Gdal. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-45943?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-45943 published?: CVE-2021-45943 was published on 2022-01-01 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:a:osgeo:gdal:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:a:oracle:spatial_and_graph:19c:*:*:*:*:*:*:*
cpe:2.3:a:oracle:spatial_and_graph:21c:*:*:*:*:*:*:*

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