How severe is CVE-2020-18428?

CVE-2020-18428 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-18428 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-18428?

CVE-2020-18428 affects Tinyexr Project Tinyexr. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-18428?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-18428 published?

CVE-2020-18428 was published on 2021-07-26 and last updated on 2026-06-17.

CVE-2020-18428

CVE-2020-18428 is a high-severity vulnerability in Tinyexr Project Tinyexr with a CVSS 3.x base score of 7.5. 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-129.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-129
Affected product: Tinyexr Project Tinyexr
Published: 2021-07-26
Last modified: 2026-06-17

Description

tinyexr commit 0.9.5 was discovered to contain an array index error in the tinyexr::SaveEXR component, which can lead to a denial of service (DOS).

Frequently asked questions

What is CVE-2020-18428?: tinyexr commit 0.9.5 was discovered to contain an array index error in the tinyexr::SaveEXR component, which can lead to a denial of service (DOS).
How severe is CVE-2020-18428?: CVE-2020-18428 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-18428 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-18428?: CVE-2020-18428 affects Tinyexr Project Tinyexr. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-18428?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-18428 published?: CVE-2020-18428 was published on 2021-07-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tinyexr_project:tinyexr:0.9.5:*:*:*:*:*:*:*

More vulnerabilities in Tinyexr Project Tinyexr

CVE-2018-12688 — Critical (CVSS 9.8): tinyexr 0.9.5 has a segmentation fault in the wav2Decode function.
CVE-2018-12503 — Critical (CVSS 9.8): tinyexr 0.9.5 has a heap-based buffer over-read in LoadEXRImageFromMemory in tinyexr.h.
CVE-2018-12092 — Critical (CVSS 9.8): tinyexr 0.9.5 has a heap-based buffer over-read in tinyexr::DecodePixelData in tinyexr.h, related to OpenEXR code.
CVE-2018-12064 — Critical (CVSS 9.8): tinyexr 0.9.5 has a heap-based buffer over-read via tinyexr::ReadChannelInfo in tinyexr.h.
CVE-2022-34300 — High (CVSS 8.8): In tinyexr 1.0.1, there is a heap-based buffer over-read in tinyexr::DecodePixelData.
CVE-2022-38529 — High (CVSS 7.8): tinyexr commit 0647fb3 was discovered to contain a heap-buffer overflow via the component rleUncompress.

All CVEs affecting Tinyexr Project Tinyexr →

Other CWE-129 (Improper Validation of Array Index) vulnerabilities

CVE-2020-27485 — Critical (CVSS 9.9): Garmin Forerunner 235 before 8.20 is affected by: Array index error. The component is: ConnectIQ TVM. The attack vector…
CVE-2020-27483 — Critical (CVSS 9.9): Garmin Forerunner 235 before 8.20 is affected by: Array index error. The component is: ConnectIQ TVM. The attack vector…
CVE-2026-21413 — Critical (CVSS 9.8): A heap-based buffer overflow vulnerability exists in the lossless_jpeg_load_raw functionality of LibRaw Commit 0b56545…
CVE-2025-27034 — Critical (CVSS 9.8): Memory corruption while selecting the PLMN from SOR failed list.
CVE-2025-3357 — Critical (CVSS 9.8): IBM Tivoli Monitoring 6.3.0.7 through 6.3.0.7 Service Pack 19 could allow a remote attacker to execute arbitrary code…
CVE-2024-45569 — Critical (CVSS 9.8): Memory corruption while parsing the ML IE due to invalid frame content.

Browse all CWE-129 (Improper Validation of Array Index) vulnerabilities →