Security readout for executives and security teams
Plain-English summary
This vulnerability can let a remote party crash software that uses OpenCV 3.4.1 to process malformed or extreme image sizes. The known impact is denial of service, not data theft or code execution. Business urgency depends on whether OpenCV image decoding is exposed to untrusted uploads, URLs, or automated image pipelines.
Executive priority
Treat as high priority when untrusted image processing is reachable over a network. Prioritize public upload services, media ingestion, OCR, computer vision, and automation queues. Lower priority for internal-only tools with trusted inputs and process isolation.
Technical view
CVE-2018-7712 affects OpenCV 3.4.1 in validateInputImageSize within modules/imgcodecs/src/loadsave.cpp. A height check can fail and raise an OpenCV CV_Assert C++ exception. The CVSS vector is network, low complexity, no privileges, no user interaction, with high availability impact only.
Likely exposure
Most relevant exposure is internet-facing or partner-facing applications that process attacker-controlled images using OpenCV 3.4.1 imgcodecs functionality. The source bundle does not identify downstream products, package names, or fixed versions, so asset inventory is required.
Exploitation context
The CVE references a public proof-of-concept repository and an OpenCV issue. CISA KEV status is false in the supplied bundle, and no cited source here confirms active exploitation in the wild.
Researcher notes
Evidence supports a denial-of-service issue in OpenCV 3.4.1, with availability-only CVSS impact. The bundle does not provide an official affected-version range, fixed release, patch commit, or evidence of active exploitation. Avoid over-scoping without confirming local dependency usage.
Mitigation direction
- Identify services and containers using OpenCV 3.4.1 for image decoding.
- Check OpenCV project guidance for fixed versions or official remediation.
- Reject unreasonable image dimensions before passing files to OpenCV.
- Handle OpenCV exceptions around image loading without crashing the service.
- Isolate image-processing workers with restart and resource controls.
Validation and detection
- Search SBOMs, lockfiles, images, and builds for OpenCV 3.4.1.
- Map all routes and jobs accepting untrusted image files or URLs.
- Confirm those paths call OpenCV imgcodecs or equivalent image-loading APIs.
- Review logs for OpenCV assertion failures during image processing.
- Verify malformed image handling returns controlled errors, not process crashes.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-617: Exact CWE lookup
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Open ATT&CK lookupCVE-2018-7712 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/xiaoqx/pocs/tree/master/opencv/dos-by-assertCVE reference · x_refsource_MISC
- https://github.com/opencv/opencv/issues/10998CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Reachable Assertion
Reachable Assertion represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.