The physdev_get_free_pirq hypercall in arch/x86/physdev.c in Xen 4.1.x and Citrix XenServer 6.0.2 and earlier uses the return value of the get_free_pirq function as an array index without checking that the return value indicates an error, which allows guest OS users to cause a denial of service (invalid memory write and host crash) and possibly gain privileges via unspecified vectors.
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.
메트릭
메트릭
점수
심각도
CVSS 벡터
출처
V2
6.1
AV:L/AC:L/Au:N/C:P/I:P/A:C
nvd@nist.gov
EPSS
EPSS는 취약점이 악용될 가능성을 예측하는 점수 모델입니다.
EPSS 점수
EPSS 모델은 0과 1(0~100%) 사이의 확률 점수를 생성합니다. 점수가 높을수록 취약점이 악용될 가능성이 높습니다.
날짜
EPSS V0
EPSS V1
EPSS V2 (> 2022-02-04)
EPSS V3 (> 2025-03-07)
EPSS V4 (> 2025-03-17)
2022-02-06
–
–
1.55%
–
–
2022-03-20
–
–
1.55%
–
–
2022-04-03
–
–
1.55%
–
–
2022-07-03
–
–
1.55%
–
–
2022-11-13
–
–
1.55%
–
–
2022-11-20
–
–
1.55%
–
–
2022-12-25
–
–
1.55%
–
–
2023-01-01
–
–
1.55%
–
–
2023-02-19
–
–
1.55%
–
–
2023-03-12
–
–
–
0.06%
–
2023-09-17
–
–
–
0.06%
–
2023-12-03
–
–
–
0.06%
–
2023-12-17
–
–
–
0.06%
–
2024-01-07
–
–
–
0.06%
–
2024-03-31
–
–
–
0.06%
–
2024-06-02
–
–
–
0.06%
–
2024-06-02
–
–
–
0.06%
–
2024-07-21
–
–
–
0.06%
–
2024-08-04
–
–
–
0.06%
–
2024-08-11
–
–
–
0.06%
–
2024-11-17
–
–
–
0.06%
–
2025-01-19
–
–
–
0.06%
–
2025-01-25
–
–
–
0.06%
–
2025-01-26
–
–
–
0.06%
–
2025-03-18
–
–
–
–
0.08%
2025-04-15
–
–
–
–
0.08%
2025-08-09
–
–
–
–
0.08%
2025-08-14
–
–
–
–
0.08%
2025-08-17
–
–
–
–
0.08%
2025-09-08
–
–
–
–
0.08%
2025-11-04
–
–
–
–
0.08%
2025-11-18
–
–
–
–
0.08%
2025-11-21
–
–
–
–
0.08%
2026-05-07
–
–
–
–
0.08%
EPSS 백분위수
백분위수는 EPSS 점수에 따라 CVE의 순위를 매기는 데 사용됩니다. 예를 들어 EPSS 점수 기준 95번째 백분위수의 CVE는 다른 CVE의 95%보다 악용될 가능성이 높습니다.