CVE-2020-11491
Monitoring::Logs in Zen Load Balancer 3.10.1 allows remote authenticated admins to conduct absolute path traversal attacks, as demonstrated by a filelog=/etc/shadow request to index.cgi.
Does this matter?
Lower severity and a low EPSS score (7.87%). Track it; it rarely justifies an emergency change on its own.
Description
Monitoring::Logs in Zen Load Balancer 3.10.1 allows remote authenticated admins to conduct absolute path traversal attacks, as demonstrated by a filelog=/etc/shadow request to index.cgi.
- CVSS 3.1
- 4.9 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 7.87% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- zevenet/zen load balancer
- Source
- cve@mitre.org
EPSS 7.9% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://code610.blogspot.com/2020/03/pentesting-zen-load-balancer-quick.htmlExploit, Third Party Advisory
- https://github.com/c610/tmp/blob/master/zenload4patreons.zipExploit, Third Party Advisory
- http://code610.blogspot.com/2020/03/pentesting-zen-load-balancer-quick.htmlExploit, Third Party Advisory
- https://github.com/c610/tmp/blob/master/zenload4patreons.zipExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.