How severe is CVE-2018-20652?

CVE-2018-20652 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-20652 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-2018-20652?

CVE-2018-20652 affects Tinyexr Project Tinyexr. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20652?

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

When was CVE-2018-20652 published?

CVE-2018-20652 was published on 2019-01-01 and last updated on 2026-06-17.

CVE-2018-20652

CVE-2018-20652 is a medium-severity vulnerability in Tinyexr Project Tinyexr with a CVSS 3.x base score of 6.5. 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-770.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Tinyexr Project Tinyexr
Published: 2019-01-01
Last modified: 2026-06-17

Description

An attempted excessive memory allocation was discovered in the function tinyexr::AllocateImage in tinyexr.h in tinyexr v0.9.5. Remote attackers could leverage this vulnerability to cause a denial-of-service via crafted input, which leads to an out-of-memory exception.

Frequently asked questions

What is CVE-2018-20652?: An attempted excessive memory allocation was discovered in the function tinyexr::AllocateImage in tinyexr.h in tinyexr v0.9.5. Remote attackers could leverage this vulnerability to cause a denial-of-service via crafted input, which leads to an out-of-memory exception.
How severe is CVE-2018-20652?: CVE-2018-20652 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-20652 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-2018-20652?: CVE-2018-20652 affects Tinyexr Project Tinyexr. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20652?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-20652 published?: CVE-2018-20652 was published on 2019-01-01 and last updated on 2026-06-17.

References

https://github.com/syoyo/tinyexr/issues/104

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-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities

CVE-2026-31283 — Critical (CVSS 9.8): In Totara LMS v19.1.5 and before, the forgot password API does not implement rate limiting for the target email…
CVE-2020-37067 — Critical (CVSS 9.8): Filetto 1.0 FTP server contains a denial of service vulnerability in the FEAT command processing that allows attackers…
CVE-2021-47875 — Critical (CVSS 9.8): GeoGebra CAS Calculator 6.0.631.0 contains a denial of service vulnerability that allows attackers to crash the…
CVE-2025-11832 — Critical (CVSS 9.8): Allocation of Resources Without Limits or Throttling vulnerability in Azure Access Technology BLU-IC2, Azure Access…
CVE-2024-44241 — Critical (CVSS 9.8): The issue was addressed with improved bounds checks. This issue is fixed in iOS 18.1 and iPadOS 18.1, macOS Sequoia…
CVE-2022-3439 — Critical (CVSS 9.8): Allocation of Resources Without Limits or Throttling in GitHub repository ikus060/rdiffweb prior to 2.5.0.

Browse all CWE-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities →