CVE-2017-17662: Directory traversal in the HTTP server on Yawcam 0.2.6 through 0.6.0 devices allows attackers to read arbitrar

This week

HIGH 7.5REMOTEUPGRADE

CVE-2017-17662 is a high-severity flaw (CVSS 7.5) affecting yawcam. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal in the HTTP server on Yawcam 0.2.6 through 0.6.0 devices allows attackers to read arbitrary files through a sequence of the form '.x./' or '....\x/' where x is a pattern composed of one or more (zero or more for the second pattern) of either \ or ..\ -- for example a '.\./', '....\/' or '...\./' sequence. For files with no extension, a single dot needs to be appended to ensure the HTTP server does not alter the request, e.g.,

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.2% (top 12%)
CISA exploited list	No
Weakness	CWE-22
Published	2018-01-10
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: yawcam

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-01-10 18:29 UTCPublished CVE record published
2026-06-17 01:11 UTCUpdated Record last modified

yawcam yawcam UPGRADE

Affected: >= 0.2.6 and <= 0.6.0

Fixed in: newer than 0.6.0

Safe to downgrade to: a release before 0.2.6

1. Check installed version

apt-cache policy yawcam || rpm -q yawcam || yawcam --version

2. UPGRADE to newer than 0.6.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade yawcam

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade yawcam

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 0.2.6 (Debian / Ubuntu)

apt-cache madison yawcam sudo apt install yawcam=<VERSION_BEFORE_0.2.6> sudo apt-mark hold yawcam

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list yawcam sudo dnf downgrade yawcam-<VERSION_BEFORE_0.2.6> sudo dnf versionlock add yawcam

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-17662?

yawcam: upgrade to newer than 0.6.0. Exact commands for each OS are on this page.

Is CVE-2017-17662 being exploited?

CVE-2017-17662 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-17662 affect?

CVE-2017-17662 affects yawcam. Severity is high (CVSS 7.5). Directory traversal in the HTTP server on Yawcam 0.2.6 through 0.6.0 devices allows attackers to read arbitrary files through a sequence of the form '.x./' or '....\x/' where x is a pattern composed of one or more (zero or more for the seco

How urgent is CVE-2017-17662?

Priority 58/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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