VulnerabilityModified
CVE-2020-25742
pci_change_irq_level in hw/pci/pci.c in QEMU before 5.1.1 has a NULL pointer dereference because pci_get_bus() might not return a valid pointer.
LOW 3.2EPSS 0.47%
Does this matter?
Lower severity and a low EPSS score (0.47%). Track it; it rarely justifies an emergency change on its own.
Description
pci_change_irq_level in hw/pci/pci.c in QEMU before 5.1.1 has a NULL pointer dereference because pci_get_bus() might not return a valid pointer.
- CVSS 3.1
- 3.2 LOWCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
- EPSS
- 0.47% probability · 40th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- qemu/qemu
- Source
- cve@mitre.org
EPSS 0.5% since 26 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://www.openwall.com/lists/oss-security/2020/09/29/1Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1883178Issue Tracking, Patch, Third Party Advisory
- https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05294.htmlMailing List, Patch, Third Party Advisory
- https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Flsi_nullptr1Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/09/29/1Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1883178Issue Tracking, Patch, Third Party Advisory
- https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05294.htmlMailing List, Patch, Third Party Advisory
- https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Flsi_nullptr1Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.