CVE-2023-2618

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2023-05-10. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 5.3Exploit: NoneExposed: 0

A fix is available — apply it.

A vulnerability, which was classified as problematic, has been found in OpenCV wechat_qrcode Module up to 4.7.0. Affected by this issue is the function DecodedBitStreamParser::decodeHanziSegment of the file qrcode/decoder/decoded_bit_stream_parser.cpp. The manipulation leads to memory leak. The attack may be launched remotely. The name of the patch is 2b62ff6181163eea029ed1cab11363b4996e9cd6. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-228548.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity53% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
67.5%
KEV
Not listed

Published

May 10, 2023

Last Modified

November 21, 2024

References (8)

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupython3-opencv (4.5.4+dfsg-9ubuntu4+esm1) @ jammy2026-05-25ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 12× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 108 total refreshes for this CVE.

  1. 2026-07-25 14:16 UTCEPSS rescore
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  51. 2026-06-10 08:17 UTCOSV refresh
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Frequently asked(5)

What is CVE-2023-2618?
CVE-2023-2618 is a medium vulnerability published on May 10, 2023. A vulnerability, which was classified as problematic, has been found in OpenCV wechatqrcode Module up to 4.7.0. Affected by this issue is the function DecodedBitStreamParser::decodeHanziSegment of the file qrcode/decoder/decodedbitstreamparser.cpp. The manipulation leads to memory leak. The attack…
When was CVE-2023-2618 disclosed?
CVE-2023-2618 was first published in the National Vulnerability Database on May 10, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-2618 actively exploited?
CVE-2023-2618 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 67.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-2618?
CVE-2023-2618 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2023-2618?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-2618, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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