CVE-2016-7909
The pcnet_rdra_addr function in hw/net/pcnet.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by setting the (1) receive or (2) transmit descriptor ring length to 0.
Does this matter?
Lower severity and a low EPSS score (0.44%). Track it; it rarely justifies an emergency change on its own.
Description
The pcnet_rdra_addr function in hw/net/pcnet.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by setting the (1) receive or (2) transmit descriptor ring length to 0.
- CVSS 3.1
- 4.4 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.44% probability · 38th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-835
- Affected
- qemu/qemu · debian/debian linux
- Source
- secalert@redhat.com
EPSS 0.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/03/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/03/6Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/93275Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg07942.htmlMailing List, Patch, Vendor Advisory
- https://security.gentoo.org/glsa/201611-11Third Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/03/3Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/10/03/6Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/93275Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg07942.htmlMailing List, Patch, Vendor Advisory
- https://security.gentoo.org/glsa/201611-11Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.