HOMEVULNERABILITIESCVE-2020-17361
MEDIUM

CVE-2020-17361

CWE-755Published: August 12, 2020· Updated: Jun 17, 2026

5.5
CVSS v3.1

Official Description

An issue was discovered in ReadyTalk Avian 1.2.0. The vm::arrayCopy method defined in classpath-common.h returns silently when a negative length is provided (instead of throwing an exception). This could result in data being lost during the copy, with varying consequences depending on the subsequent use of the destination buffer. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

NVD Source

Technical Analysis

CVE-2020-17361 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected Vendors & Products

readytalk1 product(s)
avian
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

ADVISORYhttp://seclists.org/fulldisclosure/2020/Aug/10
ADVISORYhttp://seclists.org/fulldisclosure/2020/Sep/11
ADVISORYhttp://seclists.org/fulldisclosure/2020/Sep/13
ADVISORYhttp://seclists.org/fulldisclosure/2020/Sep/14
ADVISORYhttps://github.com/ReadyTalk/avian/issues
ADVISORYhttp://seclists.org/fulldisclosure/2020/Aug/10
ADVISORYhttp://seclists.org/fulldisclosure/2020/Sep/11
ADVISORYhttp://seclists.org/fulldisclosure/2020/Sep/13
ADVISORYhttp://seclists.org/fulldisclosure/2020/Sep/14
ADVISORYhttps://github.com/ReadyTalk/avian/issues

All References (10)

→
http://seclists.org/fulldisclosure/2020/Aug/10Exploit · Mailing List · Third Party Advisory
→
http://seclists.org/fulldisclosure/2020/Sep/11Mailing List · Third Party Advisory
→
http://seclists.org/fulldisclosure/2020/Sep/13Mailing List · Third Party Advisory
→
http://seclists.org/fulldisclosure/2020/Sep/14Mailing List · Third Party Advisory
→
https://github.com/ReadyTalk/avian/issuesThird Party Advisory
→
http://seclists.org/fulldisclosure/2020/Aug/10Exploit · Mailing List · Third Party Advisory
→
http://seclists.org/fulldisclosure/2020/Sep/11Mailing List · Third Party Advisory
→
http://seclists.org/fulldisclosure/2020/Sep/13Mailing List · Third Party Advisory
→
http://seclists.org/fulldisclosure/2020/Sep/14Mailing List · Third Party Advisory
→
https://github.com/ReadyTalk/avian/issuesThird Party Advisory

Quick Facts

CVE IDCVE-2020-17361
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-755
CISA KEVNo
Affected1 vendor(s)
PublishedAug 12, 2020

Related CVEs (CWE-755)

CVE-2019-6256
9.8
CVE-2018-19991
9.8
CVE-2025-34193
9.8
CVE-2017-2877
9.8
CVE-2025-10156
9.8
CVE-2019-12815
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-17361 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. CVE data is provided under the NVD usage policy.
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