CVE-2016-1559: D-Link DAP-1353 H/W vers

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HIGH 8.1REMOTEMITIGATEMITIGATEMITIGATE

CVE-2016-1559 is a high-severity flaw (CVSS 8.1) affecting dap-1353 h\/w b1 firmware, dap-2553 h\/w a1 firmware, dap-3520 h\/w a1 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

D-Link DAP-1353 H/W vers. B1 3.15 and earlier, D-Link DAP-2553 H/W ver. A1 1.31 and earlier, and D-Link DAP-3520 H/W ver. A1 1.16 and earlier reveal wireless passwords and administrative usernames and passwords over SNMP.

Why this priority

High severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	3.3% (top 11%)
CISA exploited list	No
Weakness	CWE-200
Published	2017-04-21
Last modified	2026-06-17

Publisher (CNA): CERT/CC · Vendor: d-link

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

Am I affected?

Timeline

2017-04-21 15:59 UTCPublished CVE record published
2026-06-17 00:42 UTCUpdated Record last modified

d-link dap-1353 h\/w b1 firmware MITIGATE

Affected: 3.15

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.15

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.

d-link dap-2553 h\/w a1 firmware MITIGATE

Affected: 1.31

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.31

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.

d-link dap-3520 h\/w a1 firmware MITIGATE

Affected: 1.16

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.16

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.

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-2016-1559?

dap-1353 h\/w b1 firmware: mitigate or apply the listed mitigation; dap-2553 h\/w a1 firmware: mitigate or apply the listed mitigation; dap-3520 h\/w a1 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2016-1559 being exploited?

CVE-2016-1559 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-2016-1559 affect?

CVE-2016-1559 affects dap-1353 h\/w b1 firmware, dap-2553 h\/w a1 firmware, dap-3520 h\/w a1 firmware. Severity is high (CVSS 8.1). D-Link DAP-1353 H/W vers. B1 3.15 and earlier, D-Link DAP-2553 H/W ver. A1 1.31 and earlier, and D-Link DAP-3520 H/W ver. A1 1.16 and earlier reveal wireless passwords and administrative usernames and passwords over SNMP.

How urgent is CVE-2016-1559?

Priority 55/100. High severity; Remotely exploitable, no login, no user action

Software pages

D-Link vulnerabilities

References

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