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On CISA KEVCritical

CVE-2017-7577Uc-Httpd Path Traversal

XiongMai uc-httpd has directory traversal allowing the reading of arbitrary files via a "GET ../" HTTP request.

Published Apr 7, 2017 · Updated May 12, 2026

Key Facts

Patch immediately
  • CVE-2017-7577 is a critical-severity vulnerability (CVSS 9.8 v3) affecting Uc-Httpd (Xiongmaitech).
  • It is exploited in the wild, listed in Industry KEV feed since May 22, 2026. No public exploit code is known.
  • EPSS estimates a 28% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Scores

CVSS v3

9.8

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

28%

Higher than 98.1% of all scored CVEs

Exploit maturity

Exploited (KEV)

ATLAS score

48/100

Publication score, see How it works

Exploitation Verdict

KEV listed

May 22, 2026

3332 days after publication

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Exploited (KEV)

Public exploit code

0

Proof-of-concept links

In-the-wild evidence

2

Reports of active use

Description

XiongMai uc-httpd has directory traversal allowing the reading of arbitrary files via a "GET ../" HTTP request.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
Industry KEV feedMay 22, 2026n/aNot reported

Affected Products

1 affected entries in total
ProductAffected versionsFixed in
Uc-HttpdXiongmaitechSee advisoryn/a

Timeline

  1. Publicly disclosed

    Apr 7, 2017

  2. Last updated

    May 12, 2026

  3. Added to Industry KEV feed

    May 22, 2026

Weakness Type

  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

FAQ

Common Questions.

Is CVE-2017-7577 On Your Attack Surface?

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More vulnerabilities

Figures as of Oct 25, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

To report an error, contact Brandefense.