Shibby Tomato start_jffs2 sub_2D568 os command injection

published 2026-07-13 3 mo ago modified 2026-10-24 15 d ago also EUVD-2026-43314

cvss: 6.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.8%; EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits: 0; none known

A security flaw has been discovered in Shibby Tomato up to 1.28.0000. Affected by this issue is the function sub_2D568 of the component start_jffs2. Performing a manipulation of the argument jffs2_exec results in os command injection. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. This project is superseded by FreshTomato.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 3 mo ago (2026-07-13)

Exploit prediction

1.77% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

vuldb.com https://vuldb.com/submit/855115 referenced PoC, tagged "exploit" by a source, unverified
gitee.com https://gitee.com/Fengyi-Wang/CVE/issues/IJTQ5O referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA	3.1	6.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	3.0	6.3	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
CNA	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
CNA	4.0	2.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA	3.1	6.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CNA	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

Shibby Tomato

Classification

Weakness

CWE-78 Improper Neutralization of Special Elements used in an OS Command
CWE-77 Improper Neutralization of Special Elements used in a Command

References

vuldb.com /submit/855115
third-party-advisory, exploit
gitee.com /Fengyi-Wang/CVE/issues/IJTQ5O
exploit, issue-tracking
vuldb.com /vuln/377896
vdb-entry, technical-description
vuldb.com /vuln/377896/cti
signature, permissions-required
vuldb.com /cve/CVE-2026-15546
third-party-advisory

Sources

CVE List CVE-2026-15546
NVD CVE-2026-15546

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary