CVE-2021-1509 Cisco SD-WAN vEdge Software Buffer Overflow Vulnerabilities
Attackers can execute arbitrary code as root or cause denial of service on Cisco SD-WAN vEdge routers via buffer overflow vulnerabilities.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-1509?
CVE-2021-1509 is a high-severity memory corruption vulnerability in Cisco SD-WAN vEdge router, published on 6 May 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Multiple vulnerabilities in Cisco SD-WAN vEdge Software could allow an attacker to execute arbitrary code as the root user or cause a denial of service (DoS) condition on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
Weakness: CWE-119
Which versions are affected by CVE-2021-1509?
It affects 8 products.
Products include Cisco Vedge 1000 Firmware, Cisco Vedge 100 Firmware, Cisco Vedge 100b Firmware, Cisco Vedge 100m Firmware, Cisco Vedge 100wm Firmware, Cisco Vedge 2000 Firmware and 2 more.
How do I fix CVE-2021-1509?
No fix has been published for CVE-2021-1509 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-1509 being exploited?
There is no known exploitation of CVE-2021-1509 in the wild and no public exploit code.
Other vulnerabilities in Cisco SD-WAN vEdge router
Sources
Also known as GHSA-x977-vgq2-xc7r.