HOMEVULNERABILITIESCVE-2020-36646
HIGH

CVE-2020-36646

CWE-690Published: January 7, 2023· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

A vulnerability classified as problematic has been found in MediaArea ZenLib up to 0.4.38. This affects the function Ztring::Date_From_Seconds_1970_Local of the file Source/ZenLib/Ztring.cpp. The manipulation of the argument Value leads to unchecked return value to null pointer dereference. Upgrading to version 0.4.39 is able to address this issue. The identifier of the patch is 6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408. It is recommended to upgrade the affected component. The identifier VDB-217629 was assigned to this vulnerability.

NVD Source

Technical Analysis

CVE-2020-36646 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

mediaarea1 product(s)
zenlib
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/MediaArea/ZenLib/commit/6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408
PATCHhttps://github.com/MediaArea/ZenLib/pull/119
PATCHhttps://github.com/MediaArea/ZenLib/commit/6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408
PATCHhttps://github.com/MediaArea/ZenLib/pull/119
ADVISORYhttps://vuldb.com/?ctiid.217629
ADVISORYhttps://vuldb.com/?id.217629
ADVISORYhttps://vuldb.com/?ctiid.217629
ADVISORYhttps://vuldb.com/?id.217629

All References (10)

→
https://github.com/MediaArea/ZenLib/commit/6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408Patch
→
https://github.com/MediaArea/ZenLib/pull/119Patch
→
https://github.com/MediaArea/ZenLib/releases/tag/v0.4.39Release Notes
→
https://vuldb.com/?ctiid.217629Third Party Advisory · VDB Entry
→
https://vuldb.com/?id.217629Third Party Advisory · VDB Entry
→
https://github.com/MediaArea/ZenLib/commit/6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408Patch
→
https://github.com/MediaArea/ZenLib/pull/119Patch
→
https://github.com/MediaArea/ZenLib/releases/tag/v0.4.39Release Notes
→
https://vuldb.com/?ctiid.217629Third Party Advisory · VDB Entry
→
https://vuldb.com/?id.217629Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2020-36646
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-690
CISA KEVNo
Affected1 vendor(s)
PublishedJan 7, 2023

Related CVEs (CWE-690)

CVE-2022-20682
8.6
CVE-2026-24160
7.5
CVE-2024-23916
7.5
CVE-2024-31164
7.5
CVE-2024-31165
7.5
CVE-2024-31167
7.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-36646 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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