The SIP channel driver (chan_sip) in Asterisk before 1.2.18 and 1.4.x before 1.4.3 does not properly parse SIP UDP packets that do not contain a valid response code, which allows remote attackers to cause a denial of service (crash).
CVE 정보
메트릭
메트릭
점수
심각도
CVSS 벡터
출처
V2
7.8
AV:N/AC:L/Au:N/C:N/I:N/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
–
–
2.17%
–
–
2022-03-20
–
–
2.17%
–
–
2022-04-03
–
–
2.17%
–
–
2022-07-17
–
–
2.17%
–
–
2023-02-26
–
–
2.17%
–
–
2023-03-12
–
–
–
8.63%
–
2023-05-07
–
–
–
9.26%
–
2023-10-01
–
–
–
9.85%
–
2023-12-17
–
–
–
10.18%
–
2024-01-21
–
–
–
9.73%
–
2024-02-11
–
–
–
9.73%
–
2024-03-03
–
–
–
11.4%
–
2024-04-07
–
–
–
13.52%
–
2024-06-02
–
–
–
13.52%
–
2024-06-23
–
–
–
16.27%
–
2024-12-22
–
–
–
8.98%
–
2025-01-19
–
–
–
8.98%
–
2025-03-18
–
–
–
–
1.77%
2025-04-15
–
–
–
–
1.77%
2025-05-21
–
–
–
–
2.02%
2025-11-18
–
–
–
–
2.02%
2025-11-21
–
–
–
–
2.02%
2025-12-13
–
–
–
–
2.1%
2026-05-31
–
–
–
–
2.72%
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.