Which products and versions are affected by CVE-2017-10974?

Affected: Yaws versions 1.91. The full list is in the CVE brief.

Is CVE-2017-10974 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023.

Is CVE-2017-10974 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2017-10974?

Public exploit code is available.

Is there a fix for CVE-2017-10974?

Fixed versions are available, including Yaws 1.91-2.

How urgently should CVE-2017-10974 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2017-10974

HighExploitedPublic exploit

Yaws 1.91 allows Unauthenticated Remote File Disclosure via HTTP Directory Traversal with /%5C../ to port 8080.

Published Jul 7, 2017 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2017-10974, UBUNTU-CVE-2017-10974

Key Facts

Patch immediately

CVE-2017-10974 is a high-severity vulnerability (CVSS 7.5 v3) affecting Yaws.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023. Public exploit code is available.
EPSS estimates a 81% probability of exploitation in the next 30 days.
Fixed versions are available, including Yaws 1.91-2.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3

7.5

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

EPSS (30-day exploit likelihood)

81%

Higher than 99.6% of all scored CVEs

Exploited in the wild

Yes

2 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2017-10974 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Yaws 1.91 allows Unauthenticated Remote File Disclosure via HTTP Directory Traversal with /%5C../ to port 8080. NOTE: this CVE is only about use of an initial /%5C sequence to defeat traversal protection mechanisms; the initial /%5C sequence was apparently not discussed in earlier research on this product.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Jan 3, 2024	n/a	Not reported
CIRCL KEV	Oct 14, 2023	n/a	Not reported

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

12 affected entries in total

Product	Affected versions	Fixed in
YawsYaws	1.91	1.91-2

Patched Releases

Yaws

1.91-2

Timeline

Publicly disclosed
Jul 7, 2017
Added to CIRCL KEV
Oct 14, 2023
Added to Industry KEV feed
Jan 3, 2024
Last updated
Aug 4, 2026

Weakness Type

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

References

12 more references in the full CVE brief

FAQ

Common Questions.

Yaws 1.91 allows Unauthenticated Remote File Disclosure via HTTP Directory Traversal with /%5C../ to port 8080.
Affected: Yaws versions 1.91. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Yaws 1.91-2.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2017-10974 Running On Your Attack Surface?

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