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GHSA-22M2-MV56-5HWQ
Vulnerability from github – Published: 2026-03-18 09:30 – Updated: 2026-03-18 09:30
VLAI?
Details
A stack-based buffer overflow in the CLI's TFTP file‑transfer command handling allows a low-privileged attacker with Telnet/SSH access to trigger memory corruption by supplying unexpected or oversized filename input. Exploitation results in the corruption of the internal buffer, causing the CLI and web dashboard to become unavailable and leading to a denial of service.
Severity ?
6.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-22320"
],
"database_specific": {
"cwe_ids": [
"CWE-121"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-18T08:16:29Z",
"severity": "MODERATE"
},
"details": "A stack-based buffer overflow in the CLI\u0027s TFTP file\u2011transfer command handling allows a low-privileged attacker with Telnet/SSH access to trigger memory corruption by supplying unexpected or oversized filename input. Exploitation results in the corruption of the internal buffer, causing the CLI and web dashboard to become unavailable and leading to a denial of service.",
"id": "GHSA-22m2-mv56-5hwq",
"modified": "2026-03-18T09:30:28Z",
"published": "2026-03-18T09:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-22320"
},
{
"type": "WEB",
"url": "https://certvde.com/de/advisories/VDE-2025-104"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
CVE-2026-22320 (GCVE-0-2026-22320)
Vulnerability from cvelistv5 – Published: 2026-03-18 07:34 – Updated: 2026-03-18 13:33
VLAI?
EPSS
Title
Stack-Based Buffer Overflow in TFTP File-Transfer Command Handling over CLI
Summary
A stack-based buffer overflow in the CLI's TFTP file‑transfer command handling allows a low-privileged attacker with Telnet/SSH access to trigger memory corruption by supplying unexpected or oversized filename input. Exploitation results in the corruption of the internal buffer, causing the CLI and web dashboard to become unavailable and leading to a denial of service.
Severity ?
6.5 (Medium)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Phoenix Contact | FL SWITCH 2005 |
Affected:
0.0.0 , < 3.53
(semver)
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Credits
Gabriele Quagliarella from Nozomi Networks
{
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{
"other": {
"content": {
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"options": [
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{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-18T13:33:19.219623Z",
"version": "2.0.3"
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"type": "ssvc"
}
}
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"providerMetadata": {
"dateUpdated": "2026-03-18T13:33:41.112Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
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"title": "CISA ADP Vulnrichment"
}
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},
{
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{
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"vendor": "Phoenix Contact",
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},
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]
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{
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"vendor": "Phoenix Contact",
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{
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"status": "affected",
"version": "0.0.0",
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"vendor": "Phoenix Contact",
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]
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{
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]
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"vendor": "Phoenix Contact",
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]
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"vendor": "Phoenix Contact",
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]
},
{
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"product": "FL SWITCH 2512-2GC-2SFP",
"vendor": "Phoenix Contact",
"versions": [
{
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"status": "affected",
"version": "0.0.0",
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]
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"vendor": "Phoenix Contact",
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"status": "affected",
"version": "0.0.0",
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}
]
},
{
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"product": "FL SWITCH 2514-2SFP PN",
"vendor": "Phoenix Contact",
"versions": [
{
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"status": "affected",
"version": "0.0.0",
"versionType": "semver"
}
]
},
{
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"product": "FL SWITCH 2516",
"vendor": "Phoenix Contact",
"versions": [
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"vendor": "Phoenix Contact",
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{
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"version": "0.0.0",
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}
]
},
{
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]
},
{
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]
},
{
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"vendor": "Phoenix Contact",
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}
]
},
{
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"vendor": "Phoenix Contact",
"versions": [
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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