CVE-2021-33259: d-link dir-868lw_firmware
CVSS: 5.3v3.1MediumModified
Published 31-10-2021Last modified 09-07-2026
Vulnerability summary
CVE-2021-33259 is a medium (CVSS 5.3) vulnerability in d-link dir-868lw_firmware. EPSS estimates a 1.79% chance of exploitation in the next 30 days, higher than 78.1% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.3/10
010
Medium · v3.1 (NVD)EPSS score
1.79%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 31-10-2021PublishedVulnerability first disclosed.
- 09-07-2026Last modifiedVulnerability information updated.
Description
Several web interfaces in D-Link DIR-868LW 1.12b have no authentication requirements for access, allowing for attackers to obtain users' DNS query history.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 5.3Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
1.79%
Chance of exploitation in the next 30 days
Percentile
78%
Versus all other CVEs
30-day change
0.00 pp
From 1.79% on 21-09-2026
21-09-202621-10-2026
EPSS score1.79%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundUai Poc
Maturity: poc
Weaknesses
CWE · root causeAffected systems
D-link1 product
- dir-868lw_firmware1.12b
1 vendor · 1 product
References
2 links- www.dlink.com/en/security-bulletin/Not Applicable