CVE-2015-7282: ReadyNet WRT300N-DD devices with firmware 1.0.26 use the same source port number for every DNS query, which ma

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MEDIUM 5.8REMOTEMITIGATEMITIGATE

CVE-2015-7282 is a medium-severity flaw (CVSS 5.8) affecting wrt300n-dd firmware, wrt300n-dd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ReadyNet WRT300N-DD devices with firmware 1.0.26 use the same source port number for every DNS query, which makes it easier for remote attackers to spoof responses by selecting that number for the destination port.

Why this priority

Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-20
Published	2015-12-31
Last modified	2026-06-17

Publisher (CNA): CERT/CC · Vendor: readynet solutions

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

Am I affected?

Timeline

2015-12-31 05:59 UTCPublished CVE record published
2026-06-17 00:32 UTCUpdated Record last modified

readynet solutions wrt300n-dd firmware MITIGATE

Affected: 1.0.26

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.26

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

readynet solutions wrt300n-dd MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

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-2015-7282?

wrt300n-dd firmware: mitigate or apply the listed mitigation; wrt300n-dd: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-7282 being exploited?

CVE-2015-7282 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-2015-7282 affect?

CVE-2015-7282 affects wrt300n-dd firmware, wrt300n-dd. Severity is medium (CVSS 5.8). ReadyNet WRT300N-DD devices with firmware 1.0.26 use the same source port number for every DNS query, which makes it easier for remote attackers to spoof responses by selecting that number for the destination port.

How urgent is CVE-2015-7282?

Priority 41/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2015-7281 HIGH 8.8 MITIGATE Cross-site request forgery (CSRF) vulnerability on ReadyNet WRT300N-DD devices with firmware 1.0.26 allows rem
CVE-2015-7280 CRITICAL 9.8 MITIGATE The web administration interface on ReadyNet WRT300N-DD devices with firmware 1.0.26 has a default password of

References

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