CVE-2020-12251

An issue was discovered in Gigamon GigaVUE 5.5.01.11. The upload functionality allows an authenticated user to change the filename value (in the POST method) from the original filename to achieve directory traversal via a ../ sequence and, for example, obtain a complete directory listing of the machine.

Published: 2020-04-29 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-12251 is rated Low Risk (31.6/100): CVSS Low severity, with medium exploitation likelihood (EPSS 1.20%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-12251

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.81% 1.20% +0.39%
2 2025-11-21 0.65% 0.81% +0.16%
3 2025-11-18 — 0.65% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-12251

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.2 3.1 LOW
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 0.7 1.4 [email protected]
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 6.8 2.9 [email protected]

Weakness enumeration for CVE-2020-12251

Affected software / configurations for CVE-2020-12251

Vendor Product Version Raw CPE
gigamon gigavue >= 5.4, < 5.4.04 cpe:2.3:a:gigamon:gigavue:*:*:*:*:*:*:*:*
gigamon gigavue >= 5.5, < 5.5.02 cpe:2.3:a:gigamon:gigavue:*:*:*:*:*:*:*:*
gigamon gigavue >= 5.6, < 5.6.02 cpe:2.3:a:gigamon:gigavue:*:*:*:*:*:*:*:*
gigamon gigavue >= 5.7, < 5.7.04 cpe:2.3:a:gigamon:gigavue:*:*:*:*:*:*:*:*
gigamon gigavue >= 5.8, < 5.8.02 cpe:2.3:a:gigamon:gigavue:*:*:*:*:*:*:*:*
gigamon gigavue >= 5.9, < 5.9.00.04 cpe:2.3:a:gigamon:gigavue:*:*:*:*:*:*:*:*

References for CVE-2020-12251

cvelogic Threat Intelligence