CVE-2016-20042
TRN 3.6-23 Stack Buffer Overflow Local Code Execution
Vexday Risk Score
41Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
Exploit maturity
Proof of concept
Public proof of concept exists, but not yet automated.
CVSS 8.6EPSS 0.1%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Lifecycle
28 Mar 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
TRN 3.6-23 contains a stack buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized argument to the application. Attackers can craft a malicious command-line argument with 156 bytes of padding followed by a return address to overwrite the instruction pointer and execute shellcode with user privileges.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
trn · Threaded USENET News Readerpublic PoCs found — 1
cve_referencewww.exploit-db.com/exploits/39764unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.